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P5L-MX

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Copyright 2006 ASUSTeK COMPUTER INC. All Rights Reserved.

No part of this manual, including the products and software described in it, may be reproduced,transmitted, transcribed, stored in a retrieval system, or translated into any language in any formor by any means, except documentation kept by the purchaser for backup purposes, without theexpress written permission of ASUSTeK COMPUTER INC. (ASUS).

Product warranty or service will not be extended if: (1) the product is repaired, modied oraltered, unless such repair, modication of alteration is authorized in writing by ASUS; or (2)the serial number of the product is defaced or missing.

ASUS PROVIDES THIS MANUAL AS IS WITHOUT WARRANTY OF ANY KIND, EITHEREXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES

OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BELIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES(INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USEOR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEENADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT ORERROR IN THIS MANUAL OR PRODUCT.

SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHEDFOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIMEWITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BYASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS ORINACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTSAND SOFTWARE DESCRIBED IN IT.

Products and corporate names appearing in this manual may or may not be registeredtrademarks or copyrights of their respective companies, and are used only for identication orexplanation and to the owners benet, without intent to infringe.

E2737

First EditionAugust 2006

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Contents

Notices ................................................................................................ vi

Safety information ..............................................................................vii

About this guide .................................................................................viii

Typography ......................................................................................... ix

P5L-MX specications summary........................................................... x

Chapter 1: Product introduction

1.1 Welcome! .............................................................................. 1-2

1.2 Package contents ................................................................. 1-2

1.3 Special features .................................................................... 1-21.3.1 Product highlights ................................................... 1-2

1.3.2 Innovative ASUS features ....................................... 1-4

1.4 Before you proceed .............................................................. 1-5

1.5 Motherboard overview .......................................................... 1-6

1.5.1 Placement direction ................................................ 1-6

1.5.2 Screw holes ............................................................. 1-6

1.5.3 Motherboard layout ................................................ 1-7

1.6 Central Processing Unit (CPU) .............................................. 1-8

1.6.1 Installling the CPU ................................................... 1-8

1.6.2 Installling the CPU heatsink and fan ......................1-11

1.6.3 Uninstalling the CPU heatsink and fan................... 1-13

1.7 System memory .................................................................. 1-15

1.7.1 Overview ............................................................... 1-15

1.7.2 Memory congurations.........................................1-15

1.7.3 DDR2 Qualied Vendors List.................................1-171.7.4 Installing a DIMM ...................................................1-19

1.7.5 Removing a DIMM ..................................................1-19

1.8 Expansion slots ................................................................... 1-20

1.8.1 Installing an expansion card ..................................1-20

1.8.2 Conguring an expansion card..............................1-21

1.8.3 Interrupt assignments ...........................................1-19

1.8.4 PCI slots ................................................................ 1-221.8.5 PCI Express x16 ...................................................1-22

1.8.6 PCI Express x1 .....................................................1-22

1.9 Jumpers .............................................................................. 1-23

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iv

Contents

1.10 Connectors ......................................................................... 1-25

1.10.1 Rear panel connectors ..........................................1-25

1.10.2 Internal connectors ...............................................1-26

Chapter 2: BIOS setup

2.1 Managing and updating your BIOS ........................................ 2-2

2.1.1 Creating a bootable oppy disk.............................. 2-2

2.1.2 ASUS EZ Flash utility ............................................... 2-3

2.1.3 AFUDOS utility ........................................................ 2-4

2.1.4 ASUS CrashFree BIOS 2 utility ................................ 2-62.1.5 ASUS Update utility ................................................ 2-8

2.2 BIOS setup program ............................................................ 2-11

2.2.1 BIOS menu screen .................................................2-12

2.2.2 Menu bar ............................................................... 2-12

2.2.3 Navigation keys ..................................................... 2-12

2.2.4 Menu items ........................................................... 2-13

2.2.5 Sub-menu items .................................................... 2-13

2.2.6 Conguration elds...............................................2-13

2.2.7 Pop-up window ...................................................... 2-13

2.2.8 Scroll bar ............................................................... 2-13

2.2.9 General help .......................................................... 2-13

2.3 Main menu ........................................................................... 2-14

2.3.1 System Time ......................................................... 2-14

2.3.2 System Date ......................................................... 2-14

2.3.3 Legacy Diskette A ...............................................2-142.3.4 Primary, Third and Fourth IDE Master/Slave ......... 2-15

2.3.5 IDE Conguration.................................................. 2-16

2.3.6 System Information............................................... 2-17

2.4 Advanced menu .................................................................. 2-18

2.4.1 JumperFree Conguration.....................................2-18

2.4.2 USB Conguration.................................................2-21

2.4.3 CPU Conguration.................................................2-222.4.4 Chipset .................................................................. 2-23

2.4.5 Onboard Devices Conguration.............................2-26

2.4.6 PCI PnP .................................................................. 2-28

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Contents

2.5 Power menu ........................................................................ 2-29

2.5.1 Suspend Mode ....................................................... 2-29

2.5.2 ACPI 2.0 Support .................................................2-29

2.5.3 ACPI APIC Support ...............................................2-29

2.5.4 APM Conguration................................................2-30

2.5.5 Hardware Monitor ..................................................2-32

2.6 Boot menu .......................................................................... 2-34

2.6.1 Boot Device Priority ..............................................2-34

2.6.2 Boot Settings Conguration.................................2-35

2.6.3 Security ................................................................. 2-36

2.7 Exit menu ............................................................................ 2-38

Chapter 3: Software support

3.1 Installing an operating system .............................................. 3-2

3.2 Support CD information ........................................................ 3-2

3.2.1 Running the support CD .......................................... 3-2

3.2.2 Drivers menu ........................................................... 3-3

3.2.3 Utilities menu .......................................................... 3-4

3.2.4 Make disk menu ...................................................... 3-5

3.2.5 Manuals menu ......................................................... 3-6

3.2.5 ASUS Contact information ...................................... 3-6

Appendix: CPU features

A.1 IntelEM64T ......................................................................... A-2

Using the Intel

EM64T feature ............................................A-2A.2 Enhanced Intel SpeedStepTechnology (EIST) ....................A-2

A.2.1 System requirements ..............................................A-2

A.2.2 Using the EIST ......................................................... A-3

A.3 IntelHyper-Threading Technology ......................................A-4

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vi

Notices

Federal Communications Commission Statement

This device complies with Part 15 of the FCC Rules. Operation is subject tothe following two conditions:

This device may not cause harmful interference, and

This device must accept any interference received includinginterference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for aClass B digital device, pursuant to Part 15 of the FCC Rules. These limitsare designed to provide reasonable protection against harmful interference

in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance withmanufacturers instructions, may cause harmful interference to radiocommunications. However, there is no guarantee that interference willnot occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined byturning the equipment off and on, the user is encouraged to try to correctthe interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver. Connect the equipment to an outlet on a circuit different from that to

which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

Canadian Department of Communications Statement

This digital apparatus does not exceed the Class B limits for radio noiseemissions from digital apparatus set out in the Radio InterferenceRegulations of the Canadian Department of Communications.

This class B digital apparatus complies with CanadianICES-003.

The use of shielded cables for connection of the monitor to the graphicscard is required to assure compliance with FCC regulations. Changesor modications to this unit not expressly approved by the partyresponsible for compliance could void the users authority to operate

this equipment.

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The symbol of the crossed out wheeled bin indicates that the product(electrical and electronic equipment) should not be placed in municipalwaste. Please check local regulations for disposal of electronic products.

Safety information

Electrical safety

To prevent electrical shock hazard, disconnect the power cable fromthe electrical outlet before relocating the system.

When adding or removing devices to or from the system, ensure thatthe power cables for the devices are unplugged before the signalcables are connected. If possible, disconnect all power cables from theexisting system before you add a device.

Before connecting or removing signal cables from the motherboard,ensure that all power cables are unplugged.

Seek professional assistance before using an adapter or extensioncord. These devices could interrupt the grounding circuit.

Make sure that your power supply is set to the correct voltage in yourarea. If you are not sure about the voltage of the electrical outlet youare using, contact your local power company.

If the power supply is broken, do not try to fix it by yourself. Contacta qualified service technician or your retailer.

Operation safety Before installing the motherboard and adding devices on it, carefully

read all the manuals that came with the package.

Before using the product, make sure all cables are correctly connectedand the power cables are not damaged. If you detect any damage,contact your dealer immediately.

To avoid short circuits, keep paper clips, screws, and staples away fromconnectors, slots, sockets and circuitry.

Avoid dust, humidity, and temperature extremes. Do not place theproduct in any area where it may become wet.

Place the product on a stable surface.

If you encounter technical problems with the product, contact aqualified service technician or your retailer.

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ix

Conventions used in this guide

To make sure that you perform certain tasks properly, take note of thefollowing symbols used throughout this manual.

Typography

DANGER/WARNING: Information to prevent injury to yourselfwhen trying to complete a task.

CAUTION: Information to prevent damage to the componentswhen trying to complete a task.

NOTE: Tips and additional information to help you complete atask.

IMPORTANT: Instructions that you MUST follow to complete atask.

Bold text Indicates a menu or an item to select

Italics Used to emphasize a word or a phrase

Keys enclosed in the less-than and greater-than sign meansthat you must press the enclosed key

Example: means that you must press the Enter orReturn key

If you must press two or more keys simultaneously, the

key names are linked with a plus sign (+)

Example:

Command Means that you must type the command exactly as shown,

then supply the required item or value enclosed inbrackets

Example: At the DOS prompt, type the command line:

afudos /i[lename]

afudos /iP5LMX.ROM

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x

P5L-MX specifcations summary

(continued on the next page)

CPU

Chipset

Front Side Bus

Memory

VGA

Expansion slots

Storage

Audio

LAN

USB

Rear panel

BIOS features

LGA775 socket for IntelCore2 Extreme / Core2 Duo /PentiumD / Pentium4 / CeleronD Processors

Compatible with Intel06/05B/05A processorsSupports Intelnext generation 65nm processorsSupports IntelEnhanced Memory 64 Technology (EM64T),

Enhanced Intel SpeedStepTechnology (EIST), andIntelHyper-Threading Technology

Northbridge: Intel945GSouthbridge: IntelICH7

1066/800/533 MHz

Dual-channel memory architecture2 x 240-pin DIMM sockets support up to 4GB ofunbufferred non-ECC 667/533/400 MHz DDR2 DIMMs

Integrated IntelGraphics Media Accelerator 950

1 x PCI Express x16 slot for discrete graphics cards1 x PCI Express x12 x PCI slots

IntelICH7 SouthBridge supports:- 1 x IDE connector for up to two Ultra DMA

133/100/66/33 devices- 4 x Serial ATA 3Gb/s ports

ADIADI1986A 6-channel High-Denition audio CODECSupports Jack-Sensing, Enumeration TechnologyS/PDIF out interface support

Attansic L1 Gigabit LAN controller

Supports up to 8 USB 2.0 ports

1 x Parallel port

1 x LAN (RJ-45) port4 x USB 2.0 ports1 x VGA port1 x Serial port1 x PS/2 keyboard port1 x PS/2 mouse port6-channel high-denition audio I/O ports

4 Mb Flash ROM, AMI BIOS, PnP, WfM2.0, DMI2.0, SMBIOS 2.3, ASUS EZ Flash, ASUS CrashFree BIOS 2

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*Specications are subject to change without notice.

P5L-MX specifcations summary

Special features

Industry standard

Manageabil ity

Internalconnectors

PowerRequirement

Form FactorSupport CDcontents

ASUS EZ FlashASUS CrashFree BIOS 2

ASUS MyLogo 2ASUS C.P.R. (CPU Parameter Recall)ASUS Q-Fan

PCI 2.2, USB 2.0

WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, ChassisIntrussion

2 x USB 2.0 connectors for 4 additional USB 2.0 ports1 x CPU fan connector

1 x Chassis fan connector1 x 24-pin EATX power connector1 x 4-pin ATX 12 V power connector1 x CD in connector1 x Front panel high-denition audio connector1 x S/PDIF out connector1 x System Panel connector

ATX power supply (with 24-pin and 4-pin 12 V plugs)

Micro-ATX form factor: 9.6 in x 8 in (24.5cm x 20.3cm)Device driversASUS PC Probe IIASUS updateASUS Screensaver

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1Productintroduction

This chapter describes the motherboardfeatures and the new technologiesit supports.

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1-2 Chapter 1: Product introduction

1.1 Welcome!

Thank you fo r buy ing an ASUS P5L-MX motherboard !

The motherboard delivers a host of new features and latest technologies,making it another standout in the long line of ASUS quality motherboards!

Before you start installing the motherboard, and hardware devices on it,check the items in your package with the list below.

1.2 Package contents

Check your motherboard package for the following items.

Motherboard ASUS P5L-MX motherboard

Cables 1 x Serial ATA Cable Kit (SATA/Power)1 x Ultra DMA 133/100/66 cable1 x Floppy disk drive cable

Accessories I/O shield

Application CDs ASUS motherboard support CD

Documentation User guide

If any of the above items is damaged or missing, contact your retailer.

1.3 Special features

1.3.1 Product highl ights

LGA775 Intel Core2 Processor Ready

This motherboard supports the latest IntelCore2 processor in theLGA775 package. With the new IntelCore microarchitecture technologyand 1066 / 800 MHz FSB, IntelCore2 processor is one of the mostpowerful and energy efcient CPU in the world.

64-bit CPU support

The motherboard supports 64-bit processors that provideshigh-performance computing and faster memory access required formemory and data intensive applications.

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ASUS P5L-MX 1-3

Intel945G chipset

The Intel945G graphics memory controller hub (GMCH) and the ICH7 I/O

controller hub provide the vital interfaces for the motherboard. The GMCHfeatures the IntelGraphics Media Accelerator 950, an integrated graphicsengine for enhanced 3D, 2D, and video capabilities. The GMCH provides theinterface for a processor in the 775-land package with 533/800/1066MHz front side bus (FSB), dual channel DDR2 at speeds of up to 667 MHz,and PCI Express x16 graphics card.

The Intel ICH7 Southbridge represents the seventh generation I/Ocontroller hub that provides the interface for PCI Express and 6-channelhigh denition audio.

DDR2 memory support

The motherboard supports DDR2 memory which features data transfer ratesof 667/533/400 MHz to meet the higher bandwidth requirements of thelatest 3D graphics, multimedia, and Internet applications. The dual-channelDDR2 architecture doubles the bandwidth of your system memory to boostsystem performance, eliminating bottlenecks with peak bandwidths of upto 10.7 GB/s. See pages 1-15 to 1-18 for details.

PCI Express interface

The motherboard fully supports PCI Express, the latest I/O interconnecttechnology that speeds up the PCI bus. PCI Express features point-to-pointserial interconnections between devices and allows higher clockspeeds bycarrying data in packets. This high speed interface is software compatiblewith existing PCI specications. See page 1-22 for details.

Serial ATA technologyThe motherboard supports the Serial ATA technology through the SerialATA interfaces and the IntelICH7 chipset. The SATA specication allowsfor thinner, more exible cables with lower pin count, reduced voltagerequirement, and up to 300 MB/s data transfer rate.

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1.3.2 Innovative ASUS features

CrashFree BIOS 2

This feature allows you to restore the original BIOS data from the supportCD in case when the BIOS codes and data are corrupted. This protectioneliminates the need to buy a replacement ROM chip. See page 2-6 for details.

ASUS EZ Flash BIOSWith the ASUS EZ Flash, you can easily update the system BIOS evenbefore loading the operating system. No need to use a DOS-based utility orboot from a oppy disk. See page 2-3 for details.

ASUS MyLogo 2

ASUS My Logo 2 is the new feature present in the motherboard that allowsyou to personalize and add style to your system with customizable andanimated boot logos. See pages 2-35 for details.

C.P.R. (CPU Parameter Recal l)

The C.P.R. feature of the motherboard BIOS allows automatic re-setting to

the BIOS default settings in case the system hangs due to overclocking.When the system hangs due to overclocking, C.P.R. eliminates the needto open the system chassis and clear the RTC data. Simply shut down andreboot the system, and the BIOS automatically restores the CPU defaultsetting for each parameter.

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ASUS P5L-MX 1-5

Onboard LED

The motherboard comes with a standby power LED that lights up toindicate that the system is ON, in sleep mode, or in soft-off mode.

This is a reminder that you should shut down the system and unplugthe power cable before removing or plugging in any motherboardcomponent. The illustration below shows the location of the onboardLED.

1.4 Before you proceed

Take note of the following precautions before you install motherboardcomponents or change any motherboard settings.

Unplug the power cord from the wall socket before touching anycomponent.

Use a grounded wrist strap or touch a safely grounded object orto a metal object, such as the power supply case, before handlingcomponents to avoid damaging them due to static electricity

Hold components by the edges to avoid touching the ICs on them.

Whenever you uninstall any component, place it on a groundedantistatic pad or in the bag that came with the component.

Before you install or remove any component, ensure that the ATXpower supply is switched off or the power cord is detached fromthe power supply. Failure to do so may cause severe damage to themotherboard, peripherals, and/or components.

P5L-MX

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P5L-MX Onboard LED

SB_PWR

ON

StandbyPower

OFF

PoweredOff

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ASUS P5L-MX 1-7

1.5.3 Motherboard layout

20.3cm (8in)

24.5cm(

9.6

in)

DDR2DIMM_

A1(64bit,24

0-pinmodule)

DDR2DIMM_

B1(64bit,24

0-pinmodule)

P5L-MXLAN_USB34

AUDIO

LGA775

CPU_FAN

Super I/O

CHA_FAN1

FLOPPY

PRI_IDE

PANEL

SATA1

SATA2

SATA3

SATA4

Intel ICH7

Intel GMCH945G

CLRTCUSB78SPI_J1

4MbBIOS

SPDIF_OUTCDAAFP

USB56

PCI2

PCI1

PCIEX16

PCIEX1_1

SB_PWR

AD1986A

AttansicL1

ICS PRS552

USBPW5678

CR2032 3VLithium Cell

CMOS Power

USBPW1234

ATX12V

PARALLELPORT

VG

A

COM1

PS/2KBMST: MouseB: Keyboard

USB12

EATXPWR

R

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1.6.1 Instal l l ing the CPU

To install a CPU:

1. Locate the CPU socket on the motherboard.

1.6 Central Processing Unit (CPU)

The motherboard comes with a surface mount LGA775 socket designedfor the IntelCore2 Extreme/Core2 Duo/PentiumD/Pentium4 andCeleron D processors.

Your boxed Intel

Core2 Extreme/Core2 Duo/Pentium

D/Pentium4 or CeleronD LGA775 processor package shouldcome with installation instructions for the CPU, fan and heatsinkassembly. If the instructions in this section do not match the CPUdocumentation, follow the latter.

Upon purchase of the motherboard, make sure that the PnP capis on the socket and the socket pins are not bent. Contact yourretailer immediately if the PnP cap is missing, or if you see anydamage to the PnP cap/socket pins/motherboard components.ASUS will shoulder the cost of repair only if the damage is shipment/

transit-related. Keep the cap after installing the motherboard. ASUS will process

Return Merchandise Authorization (RMA) requests only if themotherboard comes with the cap on the LGA775 socket.

The product warranty does not cover damage to the socket pinsresulting from incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP cap.

Before installing the CPU, make sure that the socket box is facingtowards you and the load lever is on your left.

P5L-MX

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P5L-MX CPU Socket 775

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ASUS P5L-MX 1-9

3. Lift the load lever in the directionof the arrow to a 135 angle.

4. Lift the load plate with yourthumb and forenger to a 100angle (A), then push the PnP capfrom the load plate window toremove (B).

To prevent damage to the socket pins, do not remove the PnP capunless you are installing a CPU.

5. Position the CPU over thesocket, making sure thatthe gold triangle is onthe bottom-left corner ofthe socket. The socket

alignment key should tinto the CPU notch.

2. Press the load lever with your thumb (A) and move it to the left (B)until it is released from the retention tab.

Retention tab

Load lever

This side of the cambox should face you.

PnP Cap

A

B

Load plate

A

B

Alignment key

Gold tr iangle mark

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The CPU ts in only one correct orientation. DO NOT force the CPUinto the socket to prevent bending the connectors on the socket anddamaging the CPU!

6. Close the load plate (A), thenpush the load lever (B) until itsnaps into the retention tab.

A

B

The motherboard supports IntelLGA775 processors with the IntelEnhanced Memory 64 Technology (EM64T), Enhanced Intel SpeedStepTechnology (EIST), and Hyper-Threading Technology.

If you install a dual-core CPU, make sure to connect the chassis fan cableto CHA_FAN connector for system stability.

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ASUS P5L-MX 1-11

1.6.2 Instal l l ing the CPU heatsink and fan

The IntelCore2 Extreme/Core2 Duo/PentiumD/Pentium4 andCeleron D processors require a specially designed heatsink and fan

assembly to ensure optimum thermal condition and performance. Install the motherboard to the chassis before you install the CPU fan

and heatsink assembly

When you buy a boxed IntelCore2 Extreme/Core2 Duo/PentiumD/Pentium4 or CeleronD LGA775 processor, thepackageincludes the CPU fan and heatsink assembly. If you buya CPU separately, make sure that you use only Intel-certiedmulti-directional heatsink and fan.

Your I IntelCore2 Extreme/Core2 Duo/PentiumD/Pentium4

or CeleronD LGA775 heatsink and fan assembly comes in a push-pin design and requires no tool to install.

If you purchased a separate CPU heatsink and fan assembly, make surethat a Thermal Interface Material is properly applied to the CPU heatsinkor CPU before you install the heatsink and fan assembly.

To install the CPU heatsink and fan:

1. Place the heatsink on top of theinstalled CPU, making sure thatthe four fasteners match theholes on the motherboard.

Fastener

Motherboard hole

Make sure each fastener is oriented as shown, with the narrow groovedirected outward.

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Do not forget to connect the CPU fan connector! Hardware monitoringerrors can occur if you fail to plug this connector.

3. When the fan and heatsink assembly is in place, connect the CPU fancable to the connector on the motherboard labeled CPU_FAN.

2. Push down two fasteners ata time in a diagonal sequenceto secure the heatsink and fanassembly in place.

A

A B

B

B

B

AA

P5L-M

X

R

P5L-MX CPU Fan Connector

CPU_FAN

GNDCPU FAN PWR

CPU FAN INCPU FAN PWM

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ASUS P5L-MX 1-13

1.6.3 Uninstal l ing the CPU heatsink and fan

To uninstall the CPU heatsink and fan:

1. Disconnect the CPU fancable from the connectoron the motherboard.

2. Rotate each fastenercounterclockwise.

3. Pull up two fasteners at atime in a diagonal sequenceto disengage the heatsinkand fan assembly from themotherboard.

A

A B

B

B

B

A A

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4. Remove the heatsink andfan assembly from themotherboard.

5. Rotate each fastenerclockwise to reset theorientation.

The narrow end of thegroove should pointoutward after resetting.(The photo shows thegroove shaded foremphasis.)

Narrow end of the groove

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ASUS P5L-MX 1-15

1.7 System memory

1.7.1 Overview

The motherboard comes with four Double Data Rate 2 (DDR2) Dual InlineMemory Modules (DIMM) sockets.

A DDR2 module has the same physical dimensions as a DDR DIMM but hasa 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs arenotched differently to prevent installation on a DDR DIMM socket.

The gure illustrates the location of the DDR2 DIMM sockets:

1.7.2 Memory configurations

You may install 128MB, 256 MB, 512 MB and 1 GB unbuffered non-ECC

DDR2 DIMMs into the DIMM sockets.

For dual-channel conguration, the size of memory module installedper channel must be the same (DIMM_A1= DIMM_B1)

Always install DIMMs with the same CAS latency. For optimumcompatibility, it is recommended that you obtain memory modulesfrom the same vendor. Refer to the DDR2 Qualied Vendors List onpage 1-17 for details.

If you are installing only one DIMM module for a Single-channelconguration, install the module on DIMM_B1.

Channel Sockets

Channel A DIMM_A1

Channel B DIMM_B1

P5L-MX

R

P5L-MX 240-pin DDR2 DIMM Sockets

128Pins

1

12Pin

s

DIMM_

B1

DIMM_

A1

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Important notice on installing WindowsXP 32-bit version

If you install WindowsXP 32-bit version Operating System (OS), thelimitation of this OS version is that it may reserve a certain amount of

memory space for system devices. We recommend that you install lessthan 3 GB system memory if you would like to work under WindowsXP32-bit version OS. The excess memory installation will not cause anyusage problem, but it will not give users the benet of manipulating thisexcess memory space.

Visit the ASUS FAQ site for further explanation:http://support.asus.com/faq/faq.aspx?SLanguage=en-usUnder General Search, make the selections as shown, then click Search.Click the article titled 4GB memory installed but less memory sizedetected.

You also may check the URLs below for third party comments on thisissue:http://dlsvr01.asus.com/pub/ASUS/mb/4GB_Rev1.pdfhttp://www.intel.com/support/motherboards/server/sb/cs-016594.htm

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1.7.3 DDR2 Qualif ied Vendors List

The following table lists the memory modules that have been tested andqualied for use with this motherboard. Visit the ASUS website (www.asus.

com) for the latest DDR2 DIMM modules for this motherboard.

56MB Kingston KVR667D2N5/256 Elpida SS E2508AB-6E-E

512MB Kingston KVR667D2N5/512 Kingston SS D6408TE8WL-27

512MB Kingston KVR667D2E5/512 Elpida SS E5108AE-6E-E

1G Kingston KVR667D2N5/1G Kingston DS D6408TE8WL-3

512MB Samsung KR M378T6553CZ0-CE6 Samsung SS K4T51083QC

512MB Samsung KR M378T6453FZ0-CE6 Samsung DS K4T56083QF-ZCE6

1G Samsung KR M378T2953CZ0-CE6 Samsung SS K4T51083QC-ZCE6

256MB Inneon HYS64T32000HU-3S-A Inneon SS HYB18T512160AF-3SSSS17310

512MB Inneon HYS64T32000HU-3S-A Inneon SS HYB18T5128000AF-3SSSS27416

512MB Inneon HYS64T64000HU-3S-A Inneon SS HYB18T512800AF3SFSS05346

1G Inneon HYS64T128020HU-3S-A Inneon DS HYB18T512800AF3SSSS28104

512MB Corsair VS512MB667D2 Corsair DS MIII0052532M8CEC

512MB HY HYMP564U64AP8-Y4 AA Hynix SS HY5PS12821AFP-Y4

512MB HY HYMP564U64AP8-Y5 AA Hynix SS HY5PS12821AFP-Y5

1G HY HYMP512U64AP8-Y5 AB Hynix DS HY5PS12821AFP-Y5

512MB Kingmax KLCC28F-A8EB5 Elpida SS E5108AE-6E-E

512MB Kingmax KLCC28F-A8KB5 Kingmax SS KKEA88B4LAUG-29DX

1G Kingmax KLCD48F-A8KB5 Kingmax DS KKEA88B4LAUG-29DX

512MB Apacer 78.91092.420 Elpida SS E5108AE-6E-E

512MB Apacer AU512E667C5KBGC Apacer SS AM4B5708MIJS7E0627B

1G Apacer 78.01092.420 Elpida DS E5108AE-6E-E

1G Apacer AU01GE667C5KBGC Apacer DS AM4B5708MIJS7E0627B

512MB ADATA M20EL5G3H3160B1C0Z Elpida SS E5108AE-6E-E

512MB VDATA M2GVD5G3H31A4I1C52 VDATA SS VD29608A8A-3EC20615

512MB VDATA M2YVD5G3H31P4I1C52 VDATA SS VD29608A8A-3EG20627

1G VDATA M2GVD5G3I41P6I1C52 VDATA DS VD29608A8A-3EG20627

1G VDATA M2GVD5G3I41C4I1C52 VDATA DS VD29608A8A-3EC20620

256MB Nanya NT256T64UH4A1FY-3C Nanya SS NT5TU32M16AG-3C

512MB Nanya NT512T64U88A1BY-3C Nanya SS NT5TU64M8AE-3C

512MB AENEON AET660UD00-30DA98Z AENEON SS AET93F30DA 0552

1G AENEON AET760UD00-30DA98Z AENEON DS AET93F30DA8EE47414G 0540

512MB AENEON AET660UD00-30DA98Z AENEON SS AET93F300A 0606

1G AENEON AET760UD00-30DA98Z AENEON DS AET93F30DA 0604

512MB VERITECH GTP512HLTM45EG VERITECH SS VTD264M8PC6G01A164129621

1G VERITECH GTP01GHLTM55EG VERITECH DS VTD264M8PC6G01A164129621 512MB GEIL GX21GB5300DC GEIT SS Heat-Sink Package

512MB Century CENTURY 512MB Nanya SS NT5TU64M8AE-3C

512MB Century CENTURY 512MB Hynix SS HY5PS12821AFP-Y5

1G Century CENTURY 1G Hynix DS HY5PS12821AFP-Y5

1G Century CENTURY 1G Nanya DS NT5TU64M8AE-3C

512MB KINGBOX 512MB 667MHz KINGBOX SS EPD264082200-4

DIMM support

Size Vendor Model Brand Side(s) Component A B

DDR2 667 Qual if ied Vendors List

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DDR2 533 Qual if ied Vendors List

DIMM support

Size Vendor Model Brand Side(s) Component A B

256MB Kingston KVR533D2N4/256 Elpida SS E5116AB-5C-E

256MB Kingston KVR533D2N4/256 Elpida SS E5116AF-5C-E 512MB Kingston KVR533D2N4/512 Hynix DS HY5PS56821

512MB Kingston KVR533D2N4/512 Inneon SS HYB18T512800AF3733336550

1G Kingston KVR533D2N4/1G Kingston DS D6408TE7BL-37

1G Kingston KVR533D2N4/1G Micron DS 5YD11D9GCT

256MB Samsung M378T3253FG0-CD5 Samsung SS K4T56083QF-GCD5

512MB Samsung M378T6553BG0-CD5 Samsung SS K4T51083QB-GCD5

256MB Inneon HYS64T32000HU-3.7-A Inneon SS HYB18T512160AF-3.7AFSS31270

512MB Inneon HYS64T64000GU-3.7-A Inneon SS HYB18T512800AC37SSS11511

512MB Inneon HYS64T64000HU-3.7-A Inneon SS HYB18T512800AF37SSS12079

512MB Inneon HYS64T64000HU-3.7-A Inneon SS HYB18T512800AF37FSS29334

512MB Micron MT 16HTF6464AG-53EB2 Micron DS D9BOM

512MB Micron MT 16HTF6464AG-53EB2 Micron DS Z9BQT

1G Micron MT 16HTF12864AY-53EA1 Micron DS D9CRZ

512MB Corsair VS512MB533D2 Corsair DS MIII0052532M8CEC 512MB Elpida EBE51UD8ABFA-5C-E Elpida SS E5108AB-5C-E

512MB Kingmax KLBC28F-A8KB4 Kingmax SS KKEA88B4IAK-37

256MB Kingmax KLBB68F-36EP4 Elpida SS E5116AB-5C-E

512MB Kingmax KLBC28F-A8EB4 Elpida SS E5108AE-5C-E

512MB PQI MEAB-323LA PQI SS D2-E04180W025

1G PQI MEAB-423LA PQI DS D2-E04230W107

512MB AENEON AET660UD00-370A98Z AENEON SS AET93F370A G 0513

256MB AENEON AET560UD00-370A98Z AENEON SS AET94F370AWVV34635G0520

512MB AENEON AET660UD00-370A98Z AENEON SS AET93F370A 3VV36328G 0522

512MB AENEON AET660UD00-370A98X AENEON SS AET93F370A 0518

512MB AENEON AET660UD00-370A88S AENEON DS AET82F370A 0550

1G AENEON AET760UD00-370A98Z AENEON DS AET93F370A 0551

1G AENEON AET760UD00-370A98S AENEON DS AET92F370A 0606

2G AENEON AET860UD00-370A08X AENEON DS AET03F370AFVV26176G 0542 512MB VERITECH GTP512HLTM46DG VERITECH SS VTD264M8PC6G01A164129621

1G VERITECH GTP01GHLTM56DG VERITECH DS VTD264M8PC6G01A164129621

Side(s): SS - Single Sided DS - Double Sided

DIMM Support:

A - supports one module inserted into either slot, in a Single-channel memoryconguration.

B - supports on pair of modules inserted into either the yellow slots as one pair ofDual-channel memory conguration.

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1.7.4 Instal l ing a DIMM

Unplug the power supply before adding or removing DIMMs or othersystem components. Failure to do so can cause severe damage to both

the motherboard and the components.

To install a DIMM:

1. Unlock a DIMM socket bypressing the retaining clipsoutward.

2. Align a DIMM on the socketsuch that the notch on the

DIMM matches the break onthe socket.

3. Firmly insert the DIMM into thesocket until the retaining clipssnap back in place and theDIMM is properly seated.

1.7.5 Removing a DIMM

Follow these steps to remove a DIMM.

1. Simultaneously press the retainingclips outward to unlock the DIMM.

2. Remove the DIMM from the socket.

A DDR2 DIMM is keyed with a notch so that it ts in only onedirection. Do not force a DIMM into a socket to avoid damaging theDIMM.

The DDR2 DIMM sockets do not support DDR DIMMs. DO not installDDR DIMMs to the DDR2 DIMM sockets.

Support the DIMM lightly withyour ngers when pressing theretaining clips. The DIMM mightget damaged when it ips outwith extra force.

Unlocked retaining cl ip

DDR2 DIMM notch

1

2

3

DDR2 DIMM notch1

2

1

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1.8 Expansion slots

In the future, you may need to install expansion cards. The followingsub-sections describe the slots and the expansion cards that they support.

1.8.1 Instal l ing an expansion card

To install an expansion card:

1. Before installing the expansion card, read the documentation thatcame with it and make the necessary hardware settings for the card.

2. Remove the system unit cover (if your motherboard is alreadyinstalled in a chassis).

3. Remove the bracket opposite the slot that you intend to use. Keepthe screw for later use.

4. Align the card connector with the slot and press rmly until the card iscompletely seated on the slot.

5. Secure the card to the chassis with the screw you removed earlier.

6. Replace the system cover.

1.8.2 Configuring an expansion card

After installing the expansion card, congure it by adjusting the softwaresettings.

1. Turn on the system and change the necessary BIOS settings, if any.See Chapter 2 for information on BIOS setup.

2. Assign an IRQ to the card. Refer to the tables on the next page.

3. Install the software drivers for the expansion card.

Make sure to unplug the power cord before adding or removingexpansion cards. Failure to do so may cause you physical injury anddamage motherboard components.

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1.8.3 Interrupt assignments

Standard interrupt assignments

IRQ Standard Function

0 System Timer

1 Keyboard Controller

2 Re-direct to IRQ#9

4 Communications Port (COM1)*

5 IRQ holder for PCI steering*

6 Floppy Disk Controller

7 Printer Port (LPT1)*

8 System CMOS/Real Time Clock



11 IRQ holder for PCI steering*12 PS/2 Compatible Mouse Port*

13 Numeric Data Processor

14 Primary IDE Channel

* These IRQs are usually available for ISA or PCI devices.

IRQ assignments for this motherboard

A B C D E F G H

PCI slot 1 shared PCI slot 2 non-shared

PCI Express x16 slot shared

PCI Express x1 slot shared

Onboard USB controller 1 shared




Onboard USB 2.0 controller shared

Onboard IDE port shared

Onboard HD audio shared

Onboard LAN shared

When using PCI cards on shared slots, ensure that the drivers supportShare IRQ or that the cards do not need IRQ assignments. Otherwise,conicts will arise between the two PCI groups, making the systemunstable and the card inoperable.

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1.8.4 PCI slots

The PCI slots support cards suchas a LAN card, SCSI card, USB card,

and other cards that comply withPCI specications. The gure showsa LAN card installed on a PCI slot.

1.8.5 PCI Express x16

This motherboard supports onePCI Express x16 graphics card.

The gure shows a graphics cardinstalled on the PCI Express x16slot.

1.8.6 PCI Express x1

This motherboard supports PCIExpress x1 network cards, SCSIcards and other cards that complywith the PCI Express specications.The gure shows a network cardinstalled on the PCI Express x1 slot.

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ASUS P5L-MX 1-23

1.9 Jumpers

1. Clear RTC RAM (CLRTC)

This jumper allows you to clear the Real Time Clock (RTC) RAM inCMOS. You can clear the CMOS memory of date, time, and system

setup parameters by erasing the CMOS RTC RAM data. The onboardbutton cell battery powers the RAM data in CMOS, which includesystem setup information such as system passwords.

To erase the RTC RAM:

1. Turn OFF the computer and unplug the power cord.

2. Remove the onboard battery.

3. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the

cap on pins 2-3 for about 5~10 seconds, then move the cap back topins 1-2.

4. Re-install the battery.

5. Plug the power cord and turn ON the computer.

6. Hold down the key during the boot process and enter BIOSsetup to re-enter data.

Except when clearing the RTC RAM, never remove the cap on CLRTCjumper default position. Removing the cap will cause system boot failure!

You do not need to clear the RTC when the system hangs due tooverclocking. For system failure due to overclocking, use the C.P.R. (CPUParameter Recall) feature. Shut down and reboot the system so the BIOScan automatically reset parameter settings to default values.

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P5L-MX Clear RTC RAM

CLRTC

Normal Clear CMOS(Default)

1 2 2 3

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The USB device wake-up feature requires a power supply that can

provide 500 mA on the +5VSB lead for each USB port; otherwise,the system would not power up.

The total current consumed must NOT exceed the power supplycapability (+5VSB) whether under normal condition or in sleep mode.

2. USB device wake-up (3-pin USBPW1234, USBPW5678)

Set these jumpers to +5V to wake up the computer from S1 sleepmode (CPU stopped, DRAM refreshed, system running in low powermode) using the connected USB devices. Set to +5VSB to wake up

from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh,power supply in reduced power mode).

The USBPW1234 jumper is for the rear USB ports. The USBPW5678jumper is for the internal USB connectors that you can connect toadditional USB ports.

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P5L-MX USB Device Wake Up

3221

USBPW5678

+5V

(Default)+5VSB

3221

USBPW1234

+5V

(Default)+5VSB

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ASUS P5L-MX 1-25

SPEEDLED

ACT/LINKLED

LAN port

LAN port LED indications

ACT/LINK LED SPEED LED

Status Description Status Description

OFF No link OFF 10 Mbps connection

YELLOW Data activity ORANGE 100 Mbps connection(blinking)

YELLOW Linked GREEN 1 Gbps connection(no blinking)

1.10 Connectors

1.10.1 Rear panel connectors

Refer to the audio conguration table on the next page for the functionof the audio ports in 2, 4, or 6-channel conguration.

1. PS/2 mouse port (green). This port is for a PS/2 mouse.

2. Parallel port. This 25-pin port connects a parallel printer, a scanner, orother devices.

3. LAN (RJ-45) port. Supported by RealtekGigabit LAN controller,this port allows Gigabit connection to a Local Area Network (LAN)through a network hub. Refer to the table below for the LAN port LEDindications.

4. Line In port (light blue).This port connects the tape, CD, DVD player,or other audio sources.

5. Line Out port (lime). This port connects a headphone or a speaker. In4-channel, 6-channel, and 8-channel conguration, the function of thisport becomes Front Speaker Out.

6. Microphone port (pink). This port connects a microphone.

1

11

4

5

6

7

2 3

810 9

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Audio 2, 4, or 6-channel configuration

Light Blue Line In Rear Speaker Out Rear Speaker Out

Lime Line Out Front Speaker Out Front Speaker Out

Pink Mic In Mic In Bass/Center

Port Headset 4-channel 6-channel2-channel

7. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB)ports are available for connecting USB 2.0 devices.

8. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB)ports are available for connecting USB 2.0 devices.

9. VGA port. This port is for a VGA monitor or other VGA-compatible

devices.10. Serial port. This port connects a mouse, modem, or other devices that

conform with serial specication.

11. PS/2 keyboard port (purple). This port is for a PS/2 keyboard.

1.10.2 Internal connectors

1. Floppy disk drive connector (34-1 pin FLOPPY)

This connector is for the provided oppy disk drive (FDD) signal cable.Insert one end of the cable to this connector, then connect the otherend to the signal connector at the back of the oppy disk drive.

Pin 5 on the connector is removed to prevent incorrect cable connectionwhen using an FDD cable with a covered Pin 5.

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P5L-MX Floppy Disk Drive Connector

NOTE: Orient the red markings onthe floppy ribbon cable to PIN 1.

PIN1

FLOPPY

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ASUS P5L-MX 1-27

2. IDE connectors (40-1 pin PRI_IDE)

The onboard IDE connectors are for Ultra DMA 133/100/66 signalcables. There are three connectors on each Ultra DMA 133/100/66signal cable: blue, black, and gray. Connect the blue connector to

the motherboards IDE connector, then select one of the followingmodes to congure your device(s).

Black or gray

Drive jumper Mode Cablesetting of device(s) connector

Single device Cable-Select or Master - Black

Two devices Cable-Select Master Black

Slave Gray

Master Master

Slave Slave

Pin 20 on the IDE connector is removed to match the covered holeon the Ultra DMA cable connector. This prevents incorrect insertionwhen you connect the IDE cable.

Use the 80-conductor IDE cable for Ultra DMA 133/100/66 IDE devices.

If any device jumper is set as Cable-Select, make sure all other devicejumpers have the same setting.

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P5L-MX IDE Connector

PRI_ID

E

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3. Serial ATA connectors(7-pin SATA1, SATA2, SATA3, SATA4)

These connectors are for the Serial ATA signal cables for Serial ATAhard disk drives.

When using the connectors in Standard IDE mode, connect the primary(boot) hard disk drive to the SATA1/2 connector. Refer to the tablebelow for the recommended SATA hard disk drive connections.

Connect the right-angle sideof SATA signal cable to SATA

device. Or you may connectthe right-angle side of SATAcable to the onboard SATAport to avoid mechanicalconict with huge graphicscards.

right angle side

Serial ATA hard disk drive connectionConnector Color Setting Use

SATA1/2 Red Master Boot disk

SATA3/4 Black Slave Data Disk

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P5L-MX SATA Connectors

GNDRSATA_TXP1

RSATA_TXN1GNDRSATA_RXP1RSATA_RXN1GND

SATA1

GNDRSATA_TXP2


SATA2

GNDRSATA_TXP3


SATA3

GNDRSATA_TXP4


SATA4

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ASUS P5L-MX 1-29

5. Digital Audio connector (4-1 pin SPDIF_OUT)

This connector is for the S/PDIF audio module to allow digital soundoutput. Connect one end of the S/PDIF audio cable to this connectorand the other end to the S/PDIF module.

The S/PDIF out module is purchased separately.

4. CPU, Power and Chassis fan connectors (4-pin CPU_FAN,3-pin PWR_FAN (optional), 3-pin CHA_FAN)

The fan connectors support cooling fans of 350mA~2000mA (24Wmax.) or a total of 1A~7A (84W max.) at +12V. Connect the fan cables

to the fan connectors on the motherboard, making sure that the blackwire of each cable matches the ground pin of the connector.

Do not forget to connect the fan cables to the fan connectors.Insufcient air ow inside the system may damage the motherboardcomponents. These are not jumpers! DO NOT place jumper caps on thefan connectors.

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P5L-MX Fan Connectors

CPU_FAN

GNDCPU FAN PWR

CPU FAN INCPU FAN PWM

CHA_FAN

GND

Rotation+12V

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P5L-MX CPU Digital Audio Connector

+5V

SPDIFOUT

GND

SPDIF_OUT

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6. ATX power connectors (24-pin EATXPWR and 4-pin ATX12V)

These connectors are for ATX power supply plugs. The power supplyplugs are designed to t these connectors in only one orientation.Find the proper orientation and push down rmly until the connectors

completely t.

Do not forget to connect the 4-pin ATX +12 V power plug;otherwise, the system will not boot.

Use of a PSU with a higher power output is recommended whenconguring a system with more power-consuming devices. Thesystem may become unstable or may not boot up if the power isinadequate.

Make sure that your power supply unit (PSU) can provide at leastthe minimum power required by your system. See the table belowfor details.

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P5L-MX ATX Power Connector

EATXPWR

+3 Volts

+3 Volts

Ground

+5 Volts

+5 Volts

Ground

Ground

Power OK+5V Standby

+12 Volts

-5 Volts

+5 Volts

+3 Volts

-12 Volts

Ground

Ground

Ground

PSON#

Ground

+5 Volts

+12 Volts

+3 Volts

+5 Volts

Ground

EATX12V

GND+12V DC

GND+12V DC

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7. Optical dr ive audio connector (4-pin CD)

This connector is for the 4-pin audio cable that connects to the audioconnector at the back of the optical drive.

Enable the CD-IN function in the audio utility when using thisconnector.

8. USB connectors (10-1 pin USB56, USB78)

These connectors are for USB 2.0 ports. Connect the optional

USB module cable to any of these connectors, then install the moduleto a slot opening at the back of the system chassis. These USBconnectors comply with USB 2.0 specication that supports up to 480Mbps connection speed.

Never connect a 1394 cable to the USB connectors. Doing so will

damage the motherboard!

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P5L-MX Internal Audio Connector

CD(black)

RightAudioChannel

LeftAudioChannel

Ground

Ground

P5L-M

X

R

P5L-MX USB 2.0 Connectors

USB78

U

SB+5V

U

SB_

P8-

U

SB_

P8+

G

ND

N

C

USB+5V

USB_

P7-

USB_

P7+

GND

1

USB56

U

SB+5V

U

SB_

P6-

U

SB_

P6+

G

ND

N

C

USB+5V

USB_

P5-

USB_

P5+

GND

1

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9. Front panel audio connector (10-1 pin AAFP)

This connector is for a chassis-mounted front panel audio I/O modulethat supports either HD Audio or legacy AC97 audio standard.

It is recommended that you connect a high-denition front panel audiomodule to this connector to avail of the motherboards high-denitionaudio capability.

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P5L-MX Front Panel Audio Connector

HP_HD

MIC2_L

HP_R

HP_L

MIC2_JD

Jack_Sense

MIC2_R

PRESENSE#

AGND

AAFP

Legacy AC97-compliantpin definition

NC

MIC2_L

Lineout_R

Lineout_L

NC

NC

MIC2_R

NC

AGND

Azalia-compliantpin definition

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10. System panel connector (10-1 pin F_PANEL)

This connector supports several chassis-mounted functions.

System power LED (2-pin PLED)

This 2-pin connector is for the system power LED. Connect thechassis power LED cable to this connector. The system power LEDlights up when you turn on the system power, and blinks when thesystem is in sleep mode.

Hard disk drive activity LED (2-pin IDE_LED)

This 2-pin connector is for the HDD Activity LED. Connect the HDDActivity LED cable to this connector. The IDE LED lights up or asheswhen data is read from or written to the HDD.

System warning speaker (4-pin SPEAKER)

This 4-pin connector is for the chassis-mounted system warningspeaker. The speaker allows you to hear system beeps and warnings.

ATX power button/soft-off button (2-pin PWRSW)

This connector is for the system power button. Pressing the power

button turns the system on or puts the system in sleep or soft-offmode depending on the BIOS settings. Pressing the power switch formore than four seconds while the system is ON turns the system OFF.

Reset button (2-pin RESET)

This 2-pin connector is for the chassis-mounted reset button forsystem reboot without turning off the system power.

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P5L-MX System Panel Connector

* Requires an ATX power supply

NEL

PLED-

PWR

+5V

Speaker Ground

RESET

Ground

ResetGround

Ground

PWRSW

PLED+IDE_LED-

IDE_LED+IDE_

LED

PLED

SPEAKER

PA

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2BIOS setupThis chapter tells how to change

the system settings through the BIOSSetup menus. Detailed descriptionsof the BIOS parameters are alsoprovided.

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2-2 Chapter 2: BIOS setup

2.1 Managing and updating your BIOS

The following utilities allow you to manage and update the motherboardBasic Input/Output System (BIOS) setup.

1. ASUS EZ Flash (Updates the BIOS using a oppy disk or themotherboard support CD during POST.)

2. ASUS AFUDOS (Updates the BIOS in DOS mode using a bootable oppydisk.)

3. ASUS CrashFree BIOS 2(Updates the BIOS using a bootable oppy,or the motherboard support CD when the BIOS le fails or getscorrupted.)

4. ASUS Update (Updates the BIOS in Windowsenvironment.)

Refer to the corresponding sections for details on these utilities.

2.1.1 Creating a bootable f loppy disk

1. Do either one of the following to create a bootable oppy disk.

DOS environment

a. Insert a 1.44MB oppy disk into the drive.

b. At the DOS prompt, type formatA:/Sthen press .WindowsXP environment

a. Insert a 1.44 MB oppy disk to the oppy disk drive.

b. Click Start from the Windowsdesktop, then select My Computer.

c. Select the 3 1/2 Floppy Drive icon.

d. Click File from the menu, then select Format. A Format 3 1/2Floppy Disk window appears.

e. Select Create an MS-DOS startup disk from the format optionseld, then clickStart.

Windows2000 environment

To create a set of boot disks for Windows2000:

a. Insert a formatted, high density 1.44 MB oppy disk into the drive.

b. Insert the Windows2000 CD to the optical drive.

c. Click Start, then select Run.d. From the Open eld, type

D:\bootdisk\makeboot a:

assuming that D: is your optical drive.

e. Press , then follow screen instructions to continue.

Save a copy of the original motherboard BIOS le to a bootable oppydisk in case you need to restore the BIOS in the future. Copy the originalmotherboard BIOS using the ASUS Update or AFUDOS utilities.

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2. Copy the original or the latest motherboard BIOS le to the bootableoppy disk.

2.1.2 ASUS EZ Flash uti l ityThe ASUS EZ Flash feature allows you to update the BIOS without havingto go through the long process of booting from a oppy disk and usinga DOS-based utility. The EZ Flash utility is built-in the BIOS chip so it isaccessible by pressing + during the Power-On Self Tests(POST).

To update the BIOS using EZ Flash:

1. Visit the ASUS website (www.asus.com) to download the latest BIOSle for the motherboard and rename the same to P5LMX.ROM.

2. Save the BIOS le to a oppy disk, then restart the system.

3. Press + during POST to display the following.

EZFlash starting BIOS update

Checking for oppy...

4. Insert the oppy disk that contains the BIOS le to the oppy disk

drive. When the correct BIOS le is found, EZ Flash performs the BIOSupdate process and automatically reboots the system when done.

EZFlash starting BIOS update


Floppy found!

Reading le P5LMX.ROM. Completed.

Start erasing.......

Start programming...

Flashed successfully. Rebooting.

Do not shutdown or reset the system while updating the BIOS toprevent system boot failure!

A Floppy not found! error message appears if there is no oppydisk in the drive. A P5LMX.ROM not found! error message appearsif the correct BIOS le is not found in the oppy disk. Make sure thatyou rename the BIOS le to P5LMX.ROM.

This function can support devices such as USB ash disk, or oppydisk with FAT 32/16 format only.

Do not shut down or reset the system while updating the BIOS toprevent system boot failure!

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2.1.3 AFUDOS uti l ity

The AFUDOS utility allows you to update the BIOS le in DOS environmentusing a bootable oppy disk with the updated BIOS le. This utility also

allows you to copy the current BIOS le that you can use as backup whenthe BIOS fails or gets corrupted during the updating process.

Copying the current BIOS

To copy the current BIOS le using the AFUDOS utility:

Mai n fi le nam e Ext en si on n am e

1. Copy the AFUDOS utility (afudos.exe) from the motherboard supportCD to the bootable oppy disk you created earlier.

2. Boot the system in DOS mode, then at the prompt type:

afudos /o[lename]

where the [lename] is any user-assigned lename not more than

eight alphanumeric characters for the main lename and threealphanumeric characters for the extension name.

A:\>afudos /oOLDBIOS1.rom

Make sure that the oppy disk is not write-protected and has atleast 1024KB free space to save the le.

The succeeding BIOS screens are for reference only. The actual BIOS

screen displays may not be same as shown.

The utility returns to the DOS prompt after copying the current BIOSle.

3. Press . The utility copies the current BIOS le to the oppydisk.

A:\>afudos /oOLDBIOS1.romAMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))Copyright (C) 2002 American Megatrends, Inc. All rights reserved. Reading ash ..... done Write to le...... okA:\>

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Updating the BIOS fi le

To update the BIOS le using the AFUDOS utility:

1. Visit the ASUS website (www.asus.com) and download the latest BIOS

le for the motherboard. Save the BIOS le to a bootable oppy disk.

2. Copy the AFUDOS utility (afudos.exe) from the motherboard supportCD to the bootable oppy disk you created earlier.

3. Boot the system in DOS mode, then at the prompt type:

afudos /i[lename]

A:\>afudos /iP5LMX.ROM

Write the BIOS lename on a piece of paper. You need to type the exactBIOS lename at the DOS prompt.

5. The utility returns to the DOS prompt after the BIOS update process iscompleted. Reboot the system from the hard disk drive.

A:\>afudos /iP5LMX.ROMAMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

WARNING!! Do not turn off power during ash BIOS

Reading le ....... done

Reading ash ...... done

Advance Check ......

Erasing ash ...... done

Writing ash ...... done Verifying ash .... done

Please restart your computer

A:\>

A:\>afudos /iP5LMX.ROMAMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

WARNING!! Do not turn off power during ash BIOS Reading le ....... done

Reading ash ...... done

Advance Check ......

Erasing ash ...... done

Writing ash ...... 0x0008CC00 (9%)

4. The utility veries the le and starts updating the BIOS.

Do not shut down or reset the system while updating the BIOS toprevent system boot failure!

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2.1.4 ASUS CrashFree BIOS 2 uti l ity

The ASUS CrashFree BIOS 2 is an auto recovery tool that allows you torestore the BIOS le when it fails or gets corrupted during the updating

process. You can update a corrupted BIOS le using the motherboardsupport CD, or the oppy disk that contains the updated BIOS le.

Prepare the motherboard support CD, or the oppy disk containingthe updated motherboard BIOS before using this utility.

Make sure that you rename the original or updated BIOS le in theoppy disk toP5LMX.ROM

Recovering the BIOS from a floppy disk

To recover the BIOS from a oppy disk:

1. Turn on the system.

2. Insert the oppy disk with the original or updated BIOS le to theoppy disk drive.

3. The utility displays the following message and automatically checksthe oppy disk for the original or updated BIOS le.

Bad BIOS checksum. Starting BIOS recovery...Checking for oppy...

4. Restart the system after the utility completes the updating process.

Bad BIOS checksum. Starting BIOS recovery...


Floppy found!


Start ashing...

When found, the utility reads the BIOS le and starts ashing thecorrupted BIOS le.

DO NOT shut down or reset the system while updating the BIOS! Doingso can cause system boot failure!

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Recovering the BIOS from the support CD

To recover the BIOS from the support CD:

1. Remove any oppy disk from the oppy disk drive, then turn on thesystem.

2. Insert the support CD to the optical drive.

3. The utility displays the following message and automatically checksthe oppy disk for the original or updated BIOS le.

DO NOT shut down or reset the system while updating the BIOS! Doingso can cause system boot failure!


Checking for oppy...Floppy not found!

Checking for CD-ROM...

CD-ROM found!


Start ashing...

When no oppy disk is found, the utility automatically checks theoptical drive for the original or updated BIOS le. The utility thenupdates the corrupted BIOS le.



The recovered BIOS may not be the latest BIOS version for thismotherboard. Visit the ASUS website (www.asus.com) to download thelatest BIOS le.

4. Restart the system after the utility completes the updating process.

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Instal l ing ASUS Update

To install ASUS Update:

1. Place the support CD in the optical drive. The Drivers menu appears.

2. Click the Utilities tab, then click Install ASUS Update. See page 5-3 forthe Utilities screen menu.

3. The ASUS Update utility is copied to your system.

2.1.5 ASUS Update uti l ity

The ASUS Update is a utility that allows you to manage, save, and updatethe motherboard BIOS in Windowsenvironment. The ASUS Update utility

allows you to: Save the current BIOS file

Download the latest BIOS file from the Internet

Update the BIOS from an updated BIOS file

Update the BIOS directly from the Internet, and

View the BIOS version information.

This utility is available in the support CD that comes with the motherboardpackage.

ASUS Update requires an Internet connection either through a networkor an Internet Service Provider (ISP).

Quit all Windowsapplications before you update the BIOS using thisutility.

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3. Select the ASUS FTP sitenearest you to avoid networktrafc, or clickAuto Select.Click Next.

Updating the BIOS through the Internet

To update the BIOS through the Internet:

1. Launch the ASUS Update utility from the Windowsdesktop by clicking

Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUSUpdate main window appears.

2. Select Update BIOS fromthe Internet option from thedrop-down menu, then clickNext.

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Updating the BIOS through a BIOS fi le

To update the BIOS through a BIOS le:

1. Launch the ASUS Update utility from the Windowsdesktop byclicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. TheASUS Update main window appears.

2. Select Update BIOS from a leoption from the drop-down menu,

then click Next.

4. From the FTP site, select theBIOS version that you wish todownload. Click Next.

5. Follow the screen instructions to

complete the update process.

The ASUS Update utility iscapable of updating itselfthrough the Internet. Alwaysupdate the utility to avail allits features.

3. Locate the BIOS le from theOpen window, then click Open.

4. Follow the screen instructions tocomplete the update process.

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System Time [11:51:19]System Date [Thu 05/07/2004]Legacy Diskette A [1.44M, 3.5 in]

Primary IDE Master :[ST320413A]Primary IDE Slave :[Not Detected]Third IDE Master :[Not Detected]

Third IDE Slave :[Not Detected] Fourth IDE Master :[Not Detected] Fourth IDE Slave :[Not Detected] IDE Conguration

System Information

Use [ENTER], [TAB]or [SHIFT-TAB] toselect a eld.

Use [+] or [-] tocongure system time.

2.2.2 Menu bar

The menu bar on top of the screen has the following main items:

Main For changing the basic system conguration

Advanced For changing the advanced system settings

Power For changing the advanced power management (APM)conguration

Boot For changing the system boot conguration

Exit For selecting the exit options and loading defaultsettings

2.2.1 BIOS menu screen

To select an item on the menu bar, press the right or left arrow key on thekeyboard until the desired item is highlighted.

Some of the navigation keys differ from one screen to another.

Navigation keys

General helpMenu bar

Sub-menu items

Configuration f ieldsMenu items

2.2.3 Navigation keys

At the bottom right corner of a menu screen are the navigation keys for

that particular menu. Use the navigation keys to select items in the menuand change the settings.

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2.2.4 Menu items

The highlighted item on the menu bardisplays the specic items for that menu.

For example, selecting Main shows theMain menu items.

The other items (Advanced, Power, Boot,and Exit) on the menu bar have theirrespective menu items.

2.2.5 Sub-menu items

A solid triangle before each item on any menu screen means that theiteam has a sub-menu. To display the sub-menu, select the item and press.

2.2.6 Configuration f ields

These elds show the values for the menu items. If an item is user-congurable, you can change the value of the eld opposite the item. Youcannot select an item that is not user-congurable.

A congurable eld is enclosed in brackets, and is highlighted whenselected. To change the value of a eld, select it then press todisplay a list of options. Refer to 2.2.7 Pop-up window.

2.2.7 Pop-up window

Select a menu item then press to display a pop-up window withthe conguration options for that item.

2.2.8 Scrol l bar

A scroll bar appears on the right side

of a menu screen when there are itemsthat do not t on the screen. Press theUp/Down arrow keys or / keys to display theother items on the screen.

2.2.9 General help

At the top right corner of the menu

screen is a brief description of theselected item.

Scrol l bar

Select Screen Select Item+- Change OptionF1 General HelpF10 Save and ExitESC Exit

Advance d Chip set set tings

WARNING : Sett ing wro ng valu es in the sec tions b elow may cause system to malfunction.

Configure DRAM Timing by SPD [Enabled]Memory Accele ration Mode [Auto]DRAM Idle Timer [Auto]DRAm Refresh Rate [Auto]

Graphic Adapter Priority [AGP/PCI]Graphics Aperture Size [ 64 MB]Spread Spectrum [Enabled]

ICH Delayed Transaction [Enabled]

MPS Rev ision [1.4]

Pop-up window

System Time [11:10:19]System Date [Thu 03/27/2003]Legacy Diskette A [1.44M, 3.5 in]Language [English]

Primary IDE Master :[ST320413A] Primary IDE Slave :[ASUS CD-S340]

Secondary IDE Master :[Not Detected] Secondary IDE Slave :[Not Detected] Third IDE Master :[Not Detected] Fourth IDE Master :[Not Detected] IDE Configuration

System Information

Use [ENTER], [TAB]or [SHIFT-TAB] toselect a field.

Use [+] or [-] toconfigure system time.

Select Screen Select Item+- Change FieldTab Select FieldF1 General HelpF10 Save and ExitESC Exit

Main menu items

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2.3 Main menu

When you enter the BIOS Setup program, the Main menu screen appears,giving you an overview of the basic system information.

2.3.1 System Time [xx:xx:xx]Allows you to set the system time.

2.3.2 System Date [Day xx/xx/xxxx]

Allows you to set the system date.

2.3.3 Legacy Diskette A [1.44M, 3.5 in.]

Sets the type of oppy drive installed. Conguration options: [Disabled]

[360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.][2.88M, 3.5 in.]

Refer to section 2.2.1 BIOS menu screen for information on the menu

screen items and how to navigate through them.

System Time [11:51:19]System Date [Thu 05/07/2004]Legacy Diskette A [1.44M, 3.5 in]

Primary IDE Master :[ST320413A]Primary IDE Slave :[Not Detected]Third IDE Master :[Not Detected]

Third IDE Slave :[Not Detected]

Fourth IDE Master :[Not Detected] Fourth IDE Slave :[Not Detected] IDE Conguration

System Information

Use [ENTER], [TAB]or [SHIFT-TAB] toselect a eld.

Use [+] or [-] tocongure system time.

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2.3.4 Primary, Third and Fourth IDE Master/Slave

While entering Setup, the BIOS automatically detects the presence of IDEdevices. There is a separate sub-menu for each IDE device. Select a deviceitem then press to display the IDE device information.

The BIOS automatically detects the values opposite the dimmed items

(Device, Vendor, Size, LBA Mode, Block Mode, PIO Mode, Async DMA, UltraDMA, and SMART monitoring). These values are not user-congurable.These items show N/A if no IDE device is installed in the system.

Type [Auto]

Selects the type of IDE drive. Setting to Auto allows automatic selectionof the appropriate IDE device type. Select CDROM if you are specicallyconguring a CD-ROM drive. Select ARMD (ATAPI Removable Media Device)if your device is either a ZIP, LS-120, or MO drive. Conguration options:

[Not Installed] [Auto] [CDROM] [ARMD]

LBA/Large Mode [Auto]

Enables or disables the LBA mode. Setting to Auto enables the LBA modeif the device supports this mode, and if the device was not previouslyformatted with LBA mode disabled. Conguration options: [Disabled][Auto]

Block (Mult i-sector Transfer) [Auto]

Enables or disables data multi-sectors transfers. When set to Auto, thedata transfer from and to the device occurs multiple sectors at a time ifthe device supports multi-sector transfer feature. When set to [Disabled],the data transfer from and to the device occurs one sector at a time.Conguration options: [Disabled] [Auto]

Primary IDE Master

Device : Hard DiskVendor : ST320413ASize : 20.0GBLBA Mode : SupportedBlock Mode : 16 SectorsPIO Mode : SupportedAsync DMA : MultiWord DMA-2Ultra DMA : Ultra DMA-5

SMART Monitoring: Supported

Type [Auto]LBA/Large Mode [Auto]Block(Multi-sector Transfer) [Auto]PIO Mode [Auto]DMA Mode [Auto]Smart Monitoring [Auto]32Bit Data Transfer [Disabled]

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PIO Mode [Auto]

Selects the PIO mode.Conguration options: [Auto] [0] [1] [2] [3] [4]

DMA Mode [Auto]Selects the DMA mode. Conguration options: [Auto] [SWDMA0][SWDMA1] [SWDMA2] [MWDMA0] [MWDMA1] [MWDMA2] [UDMA0][UDMA1] [UDMA2] [UDMA3] [UDMA4] [UDMA5]

SMART Monitoring [Auto]

Sets the Smart Monitoring, Analysis, and Reporting Technology.Conguration options: [Auto] [Disabled] [Enabled]

32Bit Data Transfer [Disabled]Enables or disables 32-bit data transfer.Conguration options: [Disabled] [Enabled]

2.3.5 IDE Configuration

The items in this menu allow you to set or change the congurations forthe IDE devices installed in the system. Select an item then press if you wish to congure the item.

IDE Conguration

Onboard IDE Operate Mode [Enhanced Mode] Enhanced Mode Support On [S-ATA]

IDE Detect Time Out (Sec) [35]

Onboard IDE Operate Mode [Enhanced Mode]

Disables or allows selection of the IDE operation mode depending on theoperating system (OS) that you installed. Set to Enhanced Mode if you areusing native OS, such as Windows2000/XP/2003 Server.Conguration options: [Disabled] [Compatible Mode] [Enhanced Mode]

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Enhanced Mode Support On [S-ATA]The default setting S-ATA allows you to use native OS on Serial ATAand Parallel ATA ports. We recommend that you do not change the

default setting for better OS compatibility. In this setting, you mayuse legacy OS on the Parallel ATA ports only if you did not install anySerial ATA device.

The P-ATA+S-ATA and P-ATA options are for advanced users only. Ifyou set to any of these options and encounter problems, revert to thedefault setting S-ATA. Conguration options: [P-ATA+S-ATA] [S-ATA][P-ATA]

IDE Detect Time Out [35]

Selects the time out value for detecting ATA/ATAPI devices.Conguration options: [0] [5] [10] [15] [20] [25] [30] [35]

2.3.6 System Information

This menu gives you an overview of the general system specications. TheBIOS automatically detects the items in this menu.

AMI BIOS

Displays the auto-detected BIOS information

Processor

Displays the auto-detected CPU specication

System Memory

Displays the auto-detected system memory

AMIBIOSVersion : 0115Build Date : 07/27/06

ProcessorType : Genuine Intel(R) CPU 2.80GHzSpeed : 2800 MHzCount : 2

System MemorySize : 512MBAppropriated : 0MBAvailable : 504MB

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2.4 Advanced menu

The Advanced menu items allow you to change the settings for the CPUand other system devices.

Take caution when changing the settings of the Advanced menu items.

Incorrect eld values can cause the system to malfunction.

Configure CPU.

Select Screen Select ItemEnter Go to Sub-screenF1 General HelpF10 Save and ExitESC Exit

JumperFree Conguration USB Conguration

CPU CongurationChipset

Onboard Devices Conguration PCI PnP

2.4.1 JumperFree Configuration

AI Overclocking [Auto]

Allows selection of CPU overclocking options to achieve desiredCPU internal frequency. Select either one of the preset overclockingconguration options:

Manual - allows you to individually set overclocking parameters.

Auto - loads the optimal settings for the system.

Overclock Prole - loads overclocking proles with optimal parameters forstability when overclocking.

Congure System Frequency/Voltage

AI Overclocking [Auto]

Select the target CPUfrequency, and therelevant parameterswill be auto-adjusted.Frequencies higherthan CPU manufacturerrecommends are notguaranteed to bestable. If the system

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FSB/CPU External Frequency Synchronization

Front Side Bus CPU External Frequency

FSB 1066 266 MHz

FSB 800 200 MHz

FSB 533 133 MHz

DRAM Frequency [Auto]

Allows you to set the DDR2 operating frequency. Conguration options:[Auto] [DDR2-400MHz] [DDR2-533MHz] [DDR2-600MHz] [DDR2-667MHz]

[DDR2-800MHz]Selecting a very high DRAM frequency may cause the system to becomeunstable! If this happens, revert to the default setting.

The following item appears only when you set the AI Overclocking itemto [Manual].

CPU Frequency [200]

Displays the frequency sent by the clock generator to the system bus andPCI bus. The value of this item is auto-detected by the BIOS. Use the and keys to adjust the CPU frequency. You can also type the desiredCPU frequency using the numeric keypad. The values range from 100to 450. Refer to the table below for the correct Front Side Bus and CPUExternal Frequency settings.

PCI Express Frequency [Auto]

Allows you to set the PCI Express frequency. This item is set to [Auto] bydefault. Conguration options: [Auto] [90]...[150]

CPU Clock Spread Spectrum [Enabled]Allows you to enable or disable the CPU clock spread spectrum.Conguration options: [Enabled] [Disabled]

PCIE Clock Spread Spectrum [Disabled]

Allows you to enable or disable the PCIE clock spread spectrum.Conguration options: [Enabled] [Disabled]

Memory Voltage [Auto]

Allows you to select the DDR2 reference voltage.Conguration options: [Auto] [1.80V] [1.90V] [1.95V] [2.00V]

Refer to the DDR2 documentation before adjusting the memory voltage.Setting a very high memory voltage may damage the memory module(s)!

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The following item appears only when the AI Overclocking item is set to[Overclock Prole].

FSB Termination Voltage [Auto]

Allows you to select the FSB termination voltage.Conguration options: [Auto] [1.20V] [1.30V]

MCH Chipset Voltage [Auto]Allows you to select the memory controller hub (MCH) voltage.Conguration options: [Auto] [1.50V] [1.55V] [1.60V] [1.65V]

Overclock Options [Overclock 5%]

Allows you to overclock the CPU speed through the available preset values.Conguration options: [Overclock 5%] [Overclock 10%][Overclock 15%] [Overclock 20%] [Overclock 30%] [FSB888/DDR2-667][FSB960/DDR2-800] [FSB1280/DDR2-800] [FSB1333/DDR2-667][FSB1333/DDR2-834]

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USB Function [Enabled]

Allows you to enable or disable the USB function.Conguration options: [Disabled] [Enabled]

Legacy USB Support [Auto]

Allows you to enable or disable support for USB devices on legacyoperating systems (OS). Setting to Auto allows the system to detect thepresence of USB devices at startup. If detected, the USB controller legacymode is enabled. If no USB device is detected, the legacy USB support isdisabled. Conguration options: [Disabled] [Enabled] [Auto]

USB 2.0 Control ler [Enabled]

Allows you to enable or disable the USB 2.0 controller.Conguration options: [Disabled] [Enabled]

USB 2.0 Control ler Mode [HiSpeed]

Allows you to congure the USB 2.0 controller in HiSpeed (480 Mbps) orFull Speed (12 Mbps). Conguration options: [HiSpeed] [Full Speed]

BIOS EHCI Hand-off [Disabled]

Allows you to enable support for operating systems without an EHCIhand-off feature. Conguration options: [Enabled] [Disabled]

The Module Version and USB Devices Enabled items show theauto-detected values. If no USB device is detected, the item showsNone.

2.4.2 USB Configuration

The items in this menu allows you to change the USB-related features.Select an item then press to display the conguration options.

USB Conguration

Module Version - 2.23.0-F.4

USB Devices Enabled: None

USB Function [Enabled]Legacy USB Support [Auto]USB 2.0 Controller [Enabled]USB 2.0 Controller Mode [HiSpeed]BIOS EHCI Hand-Off [Disabled]

Do not disable the BIOS EHCI Hand-Off option if you are running aWindowsoperating system with USB device.

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2.4.3 CPU Configuration

The items in this menu show the CPU-related information that the BIOSautomatically detects.

Select Screen Select Item

+- Change OptionF1 General HelpF10 Save and ExitESC Exit

Congure Advanced CPU settings

Manufacturer: IntelBrand String: Genuine Intel(R) CPU 2.80GHzFrequency : 2800 MHzFSB Speed : 800 MHz

Cache L1 : 32 KBCache L2 : 2048 KBCache L3 : 0 KB

Ratio Status: Unlocked (Max:14, Min:14)Ratio Actual Value : 14 Ratio CMOS Setting: [ 6]

VID CMOS Setting: [ 62]Microcode Updation [Enabled]Max CPUID Value Limit [Disabled]Execute Disable Fuction [Disabled]CPU Internal Thermal Control [Auto]

Sets the ratio betweenCPU Core Clock and theFSB Frequency.NOTE: If an invalidratio is set in CMOSthen actual andsetpoint values maydiffer.

Ratio CMOS Setting [ 6]

Sets the ratio between the CPU Core Clock and the Front Side Busfrequency. The default value of this item is auto-detected by BIOS. Use the or keys to adjust the values.

VID CMOS Setting [ 62]

Allows you to set the VID CMOS setting at which the processor is to run.The BIOS auto-detects the default value of this item. Use the or keys to adjust the values.

Microcode Updation [Enabled]

Allows you to enable or disable the microcode updation.

Conguration options: [Disabled] [Enabled]

Max CPUID Value Limit [Disabled]

Enable this item to boot legacy operating systems that cannot supportCPUs with extended CPUID functions.Conguration options: [Disabled] [Enabled]

Execute Disable Function [Disabled]

Enables or disables the Execute Disable function. This item appears only

when you install a processor with the Execute Disable function.Conguration options: [Disabled] [Enabled]

CPU Internal Thermal Control [Auto]

Disables or sets the CPU internal thermal control.Conguration options: [Disabled] [Auto]

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2.4.4 Chipset

The Chipset menu allows you to change the advanced chipset settings.Select an item then press to display the sub-menu.

Configure DRAM Timing by SPD [Enabled]When this item is enabled, the DRAM timing parameters are set accordingto the DRAM SPD (Serial Presence Detect). When disabled, you canmanually set the DRAM timing parameters through the DRAM sub-items.The following sub-items appear when this item is Disabled.Conguration options: [Disabled] [Enabled]

DRAM CAS# Latency [5 Clocks]Controls the latency between the SDRAM read command and the time

the data actually becomes available.Conguration options: [6 Clocks] [5 Clocks] [4 Clocks] [3 Clocks]

DRAM RAS# Precharge [4 Clocks]Controls the idle clocks after issuing a precharge command to the DDRSDRAM. Conguration options: [2 Clocks] [3 Clocks] [4 Clocks][5 Clocks] [6 Clocks]

DRAM RAS# to CAS# Delay [4 Clocks]Controls the latency between the DDR SDRAM active command and

the read/write command. Conguration options: [2 Clocks] [3 Clocks][4 Clocks] [5 Clocks] [6 Clocks]

DRAM RAS# Activate to Precharge [15 Clocks]Sets the RAS Activate timing to Precharge timing.Conguration options: [4 Clock] [5 Clocks] ~ [18 Clocks]

Select Screen Select Item+- Change OptionF1 General HelpF10 Save and ExitESC Exit

+- Change OptionF1 General HelpF10 Save and ExitESC Exit

Advanced Chipset Settings

Congure DRAM Timing by SPD [Enabled]Hyper Path 3 [Auto]DRAM Throttling Threshold [Auto]

Booting Graphic Adapter Priori [PCI Express/Int-VG]Internal Graphics Mode Select [Enabled, 8MB]

Graphics memory type [Auto]Boot Display Device [Auto]Flat Panel Type [Type 1]Local Flat Panel Scaling [Auto]TV Connector [Auto]HD

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