Asus P5G41T-M LX2 User Manual

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P5G41T-M LX2 Series

• P5G41T-M LX2

• P5G41T-M LX2/GB

• P5G41T-M LX2/GB/LPT

Motherboard

E5226

Second Edition V2 November 2009

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 form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK Computer Inc. (“ASUS”).

Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless such repair, modication 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, EITHER EXPRESS 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 BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.

SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.

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Offer to Provide Source Code of Certain Software

This product may contain copyrighted software that is licensed under the General Public License (“GPL”) and under the Lesser General Public License Version (“LGPL”). The GPL and LGPL licensed code in this product is distributed without any warranty. Copies of these licenses are included in this product.

You may obtain the complete corresponding source code (as dened in the GPL) for the GPL Software,

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ASUSTeK Computer Inc. Legal Compliance Dept. 15 Li Te Rd., Beitou, Taipei 112 Taiwan

In your request please provide the name, model number and version, as stated in the About Box of the product for which you wish to obtain the corresponding source code and your contact details so that we can coordinate the terms and cost of shipment with you.

The source code will be distributed WITHOUT ANY WARRANTY and licensed under the same license as the corresponding binary/object code.

This offer is valid to anyone in receipt of this information.

ASUSTeK is eager to duly provide complete source code as required under various Free Open Source Software licenses. If however you encounter any problems in obtaining the full corresponding source code we would be much obliged if you give us a notication to the email address gpl@asus.com, stating the product and describing the problem (please do NOT send large attachments such as source code archives etc to this email address).

Contents

Notices .......................................................................................................... v

Safety information ...................................................................................... vi

About this guide ......................................................................................... vi

P5G41T-M LX2 Series specications summary ..................................... viii

Chapter 1: Product introduction

1.1 Before you proceed ..................................................................... 1-1

1.2 Motherboard overview ................................................................. 1-2

1.2.1 Motherboard layout ......................................................... 1-2

1.2.2 Layout contents ............................................................... 1-3

1.3 Central Processing Unit (CPU) ................................................... 1-3

1.4 System memory ........................................................................... 1-4

1.4.1 Overview ......................................................................... 1-4

1.4.2 Memory congurations .................................................... 1-4

1.5 Expansion slots ............................................................................ 1-6

1.5.1 Installing an expansion card ........................................... 1-6

1.5.2 Conguring an expansion card ....................................... 1-6

1.5.3 PCI slots .......................................................................... 1-6

1.5.4 PCI Express x16 slot ....................................................... 1-6

1.6 Jumpers ........................................................................................ 1-7

1.7 Connectors ................................................................................... 1-9

1.7.1 Rear panel ports ............................................................. 1-9

1.7.2 Internal connectors ....................................................... 1-10

1.8 Software support ........................................................................ 1-16

1.8.1 Installing an operating system ...................................... 1-16

1.8.2 Support DVD information .............................................. 1-16

Chapter 2: BIOS information

2.1 Managing and updating your BIOS ............................................ 2-1

2.1.1 ASUS Update utility ........................................................ 2-1

2.1.2 ASUS EZ Flash 2 ............................................................ 2-2

2.1.3 ASUS CrashFree BIOS ................................................... 2-3

2.2 BIOS setup program .................................................................... 2-3

2.3 Main menu .................................................................................... 2-4

2.3.1 System Time ................................................................... 2-4

2.3.2 System Date ................................................................... 2-4

iii

Contents

2.3.3 Legacy Diskette A ........................................................... 2-4

2.3.4 Primary IDE Master/Slave, SATA1~4 .............................. 2-5

2.3.5 Storage Conguration ..................................................... 2-6

2.3.6 System Information ......................................................... 2-6

2.4 Advanced menu ........................................................................... 2-6

2.4.1 CPU Conguration .......................................................... 2-7

2.4.2 Chipset ............................................................................ 2-8

2.4.3 Onboard Devices Conguration ...................................... 2-9

2.4.4 USB Conguration ........................................................ 2-10

2.4.5 PCI PnP .........................................................................2-11

2.5 Power menu ................................................................................ 2-11

2.5.1 Suspend Mode ...............................................................2-11

2.5.2 ACPI 2.0 Support ...........................................................2-11

2.5.3 ACPI APIC Support ........................................................2-11

2.5.4 APM Conguration ........................................................ 2-12

2.5.5 Hardware Monitor ......................................................... 2-12

2.6 Boot menu .................................................................................. 2-13

2.6.1 Boot Device Priority ...................................................... 2-13

2.6.2 Boot Settings Conguration .......................................... 2-13

2.6.3 Security ......................................................................... 2-14

2.7 Tools menu ................................................................................. 2-15

2.7.1 ASUS EZ Flash 2 .......................................................... 2-15

2.8 Exit menu .................................................................................... 2-15

Notices

Federal Communications Commission Statement

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

• This device may not cause harmful interference, and

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

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed

and used in accordance with manufacturer’s instructions, may cause harmful interference

to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the 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.

The use of shielded cables for connection of the monitor to the graphics card is required

to assure compliance with FCC regulations. Changes or modications to this unit not expressly approved by the party responsible for compliance could void the user’s authority

to operate this equipment.

Canadian Department of Communications Statement

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

This class B digital apparatus complies with Canadian ICES-003.

REACH

Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published the chemical substances in our products at ASUS REACH website at http://green.asus.com/english/REACH.htm.

DO NOT throw the motherboard in municipal waste. This product has been designed to enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin indicates that the product (electrical and electronic equipment) should not be placed in municipal waste. Check local regulations for disposal of electronic products.

DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol of the crossed out wheeled bin indicates that the battery should not be placed in municipal waste.

Safety information

Electrical safety

• To prevent electric shock hazard, disconnect the power cable from the electric outlet

before relocating the system.

• When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing 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 extension cord. These devices could interrupt the grounding circuit.

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

• If the power supply is broken, do not try to x it by yourself. Contact a qualied 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, ensure that all cables are correctly connected and 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 from connectors, slots, sockets and circuitry.

•

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

•

Place the product on a stable surface.

•

If you encounter technical problems with the product, contact a qualied service

technician or your retailer.

About this guide

This user guide contains the information you need when installing and conguring the

motherboard.

How this guide is organized

This guide contains the following parts:

• Chapter 1: Product introduction

This chapter describes the features of the motherboard and the new technology it

supports.

• Chapter 2: BIOS information

This chapter tells how to change system settings through the BIOS Setup menus.

Detailed descriptions of the BIOS parameters are also provided.

Conventions used in this guide

To ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.

DANGER/WARNING: Information to prevent injury to yourself when trying to

complete a task.

CAUTION: Information to prevent damage to the components when trying to

complete a task.

IMPORTANT: Instructions that you MUST follow to complete a task.

NOTE: Tips and additional information to help you complete a task.

Where to nd more information

Refer to the following sources for additional information and for product and software updates.

1. ASUS websites

The ASUS website provides updated information on ASUS hardware and software

products. Refer to the ASUS contact information.

2. Optional documentation

Your product package may include optional documentation, such as warranty yers,

that may have been added by your dealer. These documents are not part of the standard package.

Typography

Bold text Indicates a menu or an item to select.

Italics

Used to emphasize a word or a phrase.

<Key> Keys enclosed in the less-than and greater-than sign means that you must press the enclosed key. Example: <Enter> means that you must press the Enter or Return key.

<Key1>+<Key2>+<Key3> If you must press two or more keys simultaneously, the key names are linked with a plus sign (+). Example: <Ctrl>+<Alt>+<D>

vii

P5G41T-M LX2 Series specications summary

CPU LGA775 socket for Intel® Core™2 Quad / Core™2 Extreme

Chipset Northbridge: Intel® G41

Front Side Bus 1333/1066/800 MHz

Memory Dual channel memory architecture

Graphics Integrated Intel® Graphics Media Accelerator

Expansion slots 1 x PCIe x16 slot

Storage 1 x Ultra DMA 100/66 connector

LAN P5G41T-M LX2/GB and P5G41T-M LX2/GB/LPT:

Audio VIA® VT1705 High Denition Audio 6-channel CODEC

USB Supports up to 8 USB 2.0/1.1 ports (4 ports at mid-board,

/ Core™2 Duo / Pentium® dual-core / Celeron® dual-core / Celeron® processors Supports Intel® 45nm multi-core CPU Supports Intel® Hyper-Threading Technology and Enhanced Intel SpeedStep® Technology (EIST) * Refer to www.asus.com for the Intel® CPU support list.

Southbridge: Intel® ICH7

- 2 x 240-pin DIMM sockets support unbuffered non-ECC 1066/800 MHz DDR3 memory modules

- Supports up to 8GB system memory * Refer to www.asus.com for the latest Memory QVL (Qualied Vendors Lists). ** When you install a total memory of 4GB or more, Windows® 32-bit operating system may only recognize less than 3GB. We recommend a maximum of 3GB system memory if you are using a Windows® 32-bit operating system.

(Intel® GMA 4500) Supports max. shared memory of 1759MB Supports RGB with max. resolution of 2048 x 1536 x 32Bpp @ 75HZ Supports Microsoft® DirectX 10

1 x PCIe x1 slot (optional) 2 x PCI slots

4 x Serial ATA 3Gb/s ports

Realtek® RTL8112L Gigabit Ethernet PCIe controller P5G41T-M LX2: Realtek® RTL8103EL 10/100Mbps Ethernet PCIe controller

Supports Multi-streaming technology

4 ports at the back panel)

viii

(continued on the next page)

P5G41T-M LX2 Series specications summary

Back panel I/O ports 1 x PS/2 keyboard port

Internal connectors 2 USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1

ASUS unique features ASUS CrashFree BIOS 3

BIOS 8Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0,

Manageability WOL, PXE, PME Wake up, WOR by Ring

Support DVD Drivers

Accessories 2 x Serial ATA cables

Form factor MicroATX form factor: 9.6 in x 7.5 in (24.4 cm x 19.1 cm)

1 x PS/2 mouse port 1 x COM port 1 x VGA port 1 x LAN (RJ-45) port 4 x USB 2.0/1.1 ports 1 x LPT port (optional for P5G41T-M LX2 and P5G41T-M LX2/GB) 6-channel audio ports

ports 1 x IDE connector 4 x Serial ATA connectors 1 x High denition front panel audio connector 1 x System panel connector 1 x CD audio-in connector 1 x CPU fan connector 1 x Chassis fan connector 1 x 24-pin EATX power connector 1 x 4-pin ATX 12V power connector 1 x Chassis intrusion connector (optional for P5G41T-M LX2 and P5G41T-M LX2/GB) 1 x Floppy disk drive connector (optional for P5G41T-M LX2 and P5G41T-M LX2/GB)

ASUS Q-Fan ASUS EZ Flash 2 ASUS MyLogo 2

ACPI 2.0a, SM BIOS 2.5

ASUS PC Probe II ASUS Update Anti-Virus software (OEM version)

1 x Ultra DMA 100/66 cable 1 x I/O shield 1 x Support DVD 1 x User Manual

* Specications are subject to change without notice.

Chapter 1

SB_PWR

Standby Power Powered Off

OFF

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT Onboard power LED

Product introduction

Thank you for buying an ASUS® P5G41T-M LX2 Series motherboard! Before you start installing the motherboard, and hardware devices on it, check the items in

your motherboard package. Refer to page ix for the list of accessories.

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

1.1 Before you proceed

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

• Unplug the power cord from the wall socket before touching any component.

• Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, 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 grounded antistatic pad or in the bag that came with the component.

• Before you install or remove any component, ensure that the ATX power supply is switched off or the power cord is detached from the power supply. Failure to do so may cause severe damage to the motherboard, peripherals, or components.

Onboard LED

The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you must shut down the system and unplug the power cable before removing or plugging in any motherboard component. The illustration below shows the location of the onboard LED.

ASUS P5G41T-M LX2 Series1-1

1.2 Motherboard overview

P5G41T-M LX2/GB/LPT

PCIEX16

PCI2

PCI1

PRI_IDE

USB56 USB78

F_PANEL

AAFP

ICS

9LPRS441

ATX12V

EATXPWR

CPU_FAN

Intel

G41

Lithium Cell

CMOS Power

Super

I/O

AUDIO

VIA

VT1705

RTL

8112L

KBMS

8Mb BIOS

SB_PWR

CLRTC

USBPW1-4

USBPW5-8

CHASSIS

KBPWR

19.1cm(7.5in)

24.4cm(9.6in)

LGA775

Intel

ICH7

DDR3 DIMM_A1 (64bit, 240-pin module)

DDR3 DIMM_B1 (64bit, 240-pin module)

LAN1_USB12

USB34

SATA1

SATA2

SATA3

SATA4

CHA_FAN

VGA

LPT

COM1

11910

15 13

1216

FLOPPY

1.2.1 Motherboard layout

Ensure that you install the motherboard into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis.

Place this side towards the rear of the chassis.

• P5G41T-M LX2 integrates the Realtek® RTL8103EL Fast Ethernet controller.

• P5G41T-M LX2/GB and P5G41T-M LX2/GB/LPT integrate the Realtek® RTL8112L Gigabit Ethernet controller.

• The oppy disk drive connector, chassis intrusion connector, and LPT port are optional

items for P5G41T-M LX2 and P5G41T-M LX2/GB.

Place six screws into the holes indicated by circles to secure the motherboard to the chassis. DO NOT overtighten the screws! Doing so can damage the motherboard.

1-2Chapter 1: Product introduction

1.2.2 Layout contents

Connectors/Jumpers/Slots/LED Page Connectors/Jumpers/Slots/LED Page

1. Keyboard power (3-pin KBPWR) 1-8 10. Clear RTC RAM (3-pin CLRTC) 1-7

2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-10 11. USB connectors (10-1 pin USB56, USB78) 1-13

3. CPU and Chassis fan connectors (4-pin CPU_FAN and 3-pin CHA_FAN)

4. USB device wake-up (3-pin USBPW1-4, USBPW5-8) 1-8 13. Chassis intrusion connector

5. LGA775 CPU socket 1-3 14. Floppy disk drive connector

6. DDR3 DIMM slots 1-4 15. Optical drive audio connector (4-pin CD) 1-12

7. IDE connector (40-1 pin PRI_IDE) 1-12 16. Front panel audio connector (10-1 pin AAFP) 1-14

8. SATA connectors (7-pin SATA1-4) 1-11 17. PCIe x16 / PCI slots 1-6

9. System panel connector (10-1 pin F_PANEL) 1-15

1-11 12. Standby power LED (SB_PWR) 1-1

(4-1 pin CHASSIS)

(34-1 pin FLOPPY)

1.3 Central Processing Unit (CPU)

This motherboard comes with a surface mount LGA775 socket designed for the Intel® Core™2 Quad / Core™2 Extreme / Core™2 Duo / Pentium® dual-core / Celeron® dual-core / Celeron® processors.

• Upon purchase of the motherboard, ensure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/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 the motherboard comes with the cap on the

LGA775 socket.

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

1-14

1-13

The motherboard supports Intel® LGA775 processors with the Intel® Enhanced Intel SpeedStep® Technology (EIST) and Hyper-Threading Technology.

ASUS P5G41T-M LX2 Series1-3

1.4 System memory

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT 240-pin DDR3 DIMM sockets

DIMM_A1

DIMM_B1

1.4.1 Overview

This motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are

developed for better performance with less power consumption. The gure illustrates the

location of the DDR3 DIMM sockets:

Channel Sockets

Channel A DIMM_A1

Channel B DIMM_B1

1.4.2 Memory congurations

You may install 512MB, 1GB, 2GB, and 4GB unbuffered non-ECC DDR3 DIMMs into the DIMM sockets.

• You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel conguration. Any excess memory from the higher-sized channel is then mapped for single-channel operation.

• Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor.

• Due to the memory address limitation on 32-bit Windows® OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. For effective use of memory, we recommend that you do either of the following:

- Use a maximum of 3GB system memory if you are using a 32-bit Windows® OS.

- Install a 64-bit Windows® OS when you want to install 4GB or more memory on the motherboard.

• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.

1-4Chapter 1: Product introduction

P5G41T-M LX2 Series Motherboard Qualied Vendors Lists (QVL)

DDR3-1066MHz capability

Voltage

DIMM

Support

A* B*

Vendor Part No. Size

Crucial CT12864BA1067.8FF 1024MB SS Micron 9GF22D9KPT 7 • •

Crucial CT25664BA1067.16FF 2048MB DS Micron 9HF22D9KPT 7 • •

Elpida EBJ51UD8BAFA-AC-E 512MB SS Elpida J5308BASE-AC-E • •

Elpida EBJ51UD8BAFA-AE-E 512MB SS Elpida J5308BASE-AC-E • •

Elpida EBJ11UD8BAFA-AE-E 1024MB DS Elpida J5308BASE-AC-E • •

Kingston KVR1066D3N7/1G 1024MB SS Kingston D1288JEKAPGA7U 7 1.5V • •

Kingston KVR1066D3N7/2G 2048MB DS Kingston D1288JEKAPGA7U 7 1.5V • •

Micron MT8JTF12864AY-1G1D1 1024MB SS Micron 8ED22D9JNL • •

Micron MT8JTF12864AZ-1G1F1 1024MB SS Micron 9GF22D9KPT 7 • •

Micron MT16JTF25664AY-1G1D1 2048MB DS Micron 8LD22D9JNL • •

Micron MT16JTF25664AZ-1G1F1 2048MB DS Micron 9HF22D9KPT 7 • •

OCZ OCZ3SOE10662GK 2048MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-16 1.75V • •

SAMSUNG M378B2873EH1-CF8 1024MB SS Samsung SEC 901 HCF8 K4B1G0846E • •

SAMSUNG M378B5273BH1-CF8 4096MB DS SAMSUNG 846 K4B2G0846B-HCF8 • •

Elixir M2Y2G64CBHA9N-BE 2048MB DS N/A Heat-Sink Package 7-7-7-20 • •

Kingtiger 2GB DIMM PC3-8500 2048MB DS Hynix H5TQ1G83AFP G7C • •

SS/DSChip

Brand

Chip NO.

Timing Dimm (Bios)

SS: Single-sided / DS: Double-sided DIMM support:

• A*: Supports one module inserted into either slot as Single-channel memory

conguration.

• B*: Supports one pair of modules inserted into both slots as one pair of dual-channel

memory conguration.

Visit the ASUS website at www.asus.com for the latest QVL.

ASUS P5G41T-M LX2 Series1-5

1.5 Expansion slots

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

Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components.

1.5.1 Installing an expansion card

To install an expansion card:

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

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

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

4. Align the card connector with the slot and press rmly until the card is completely

seated on the slot.

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

6. Replace the system cover.

1.5.2 Conguring an expansion card

After installing the expansion card, congure it by adjusting the software settings.

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.

3. Install the software drivers for the expansion card.

When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that

the cards do not need IRQ assignments. Otherwise, conicts will arise between the two PCI

groups, making the system unstable and the card inoperable.

1.5.3 PCI slots

The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that

comply with PCI specications.

1.5.4 PCI Express x16 slot

This motherboard supports a PCI Express x16 graphics card that complies with the PCI

Express specications.

1-6Chapter 1: Product introduction

1.6 Jumpers

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT Clear RTC RAM

1 2 2 3

Normal

(Default)

Clear RTC

CLRTC

1. Clear RTC RAM (3-pin CLRTC)

This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords.

To erase the RTC RAM:

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

2. 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 to pins 1-2.

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

4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data.

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

• If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.

• You do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature. Shut down and reboot the system, then the BIOS automatically resets parameter settings to default values.

ASUS P5G41T-M LX2 Series1-7

2. Keyboard power (3-pin KBPWR)

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT Keyboard Power Setting

2 3

+5V

(Default)

+5VSB

KBPWR

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT USB Device Wake Up

2 3

+5V

(Default)

+5VSB

USBPW5-8

2 3

+5V

+5VSB

(Default)

USBPW1-4

This jumper allows you to enable or disable the keyboard wake-up feature. When you set this jumper to pins 2–3 (+5VSB), you can wake up the computer by pressing a key on the keyboard. This feature requires an ATX power supply that can supply at least 1A on the +5VSB lead, and a corresponding setting in the BIOS.

3. USB device wake-up (3-pin USBPW1-4, USBPW5-8)

Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected USB devices. Set these jumpers to +5VSB to wake up the computer from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh, power supply in reduced power mode).

1-8Chapter 1: Product introduction

1.7 Connectors

8 7

10 9

4 5

1.7.1 Rear panel ports

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

2. LPT port. This 25-pin port connects to a parallel printer, a scanner, or other devices.

The LPT port is an optional item for P5G41T-M LX2 and P5G41T-M LX2/GB.

3. LAN (RJ-45) port. This port allows connection to a Local Area Network (LAN)

through a network hub. Refer to the table below for the LAN port LED indications.

LED

P5G41T-M LX2 LAN port LED indications

LED (Orange) LED (Green)

Status Description Status Description

OFF No link OFF No link

ORANGE 100Mbps connection GREEN 10Mbps connection

LED

(Orange)

LAN port

(Green)

P5G41T-M LX2/GB and P5G41T-M LX2/GB/LPT LAN port LED indications

Activity/Link LED Speed LED

Status Description Status Description

OFF No link OFF 10Mbps connection

ORANGE Linked ORANGE 100Mbps connection

BLINKING Data activity GREEN 1Gbps connection

4. Line In port (light blue).

This port connects a tape, CD, DVD player, or other audio

ACT/LINK

LED

LAN port

SPEED

LED

sources.

5. Line Out port (lime). This port connects a headphone or a speaker. In 4-channel and

6-channel congurations, the function of this port becomes Front Speaker Out.

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

Refer to the audio conguration table on the next page for the function of the audio ports in 2, 4, or 6-channel conguration.

ASUS P5G41T-M LX2 Series1-9

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT ATX power connectors

EATXPWR

PIN 1

GND +5 Volts +5 Volts +5 Volts

-5 Volts GND GND GND PSON# GND

-12 Volts +3 Volts

+3 Volts +12 Volts +12 Volts

+5V Standby

Power OK

GND

+5 Volts

GND

+5 Volts

GND +3 Volts +3 Volts

ATX12V

PIN 1

+12V DC

GND

Audio 2, 4, or 6-channel conguration

Port Headset 2-channel 4-channel 6-channel

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

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. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other

VGA-compatible devices.

10. COM port. This port is for pointing devices or other serial devices.

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

1.7.2 Internal connectors

1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)

These connectors are for ATX power supply plugs. The power supply plugs are

designed to t these connectors in only one orientation. Find the proper orientation and push down rmly until the connectors completely t.

•

For a fully congured system, we recommend that you use a power supply unit (PSU)

that complies with ATX 12V Specication 2.0 or later version and provides a minimum

power of 400W.

• DO NOT forget to connect the 4-pin ATX12V power plug. Otherwise, the system will not boot.

• We recommend that you use a PSU with a higher power output when conguring a

system with more power-consuming devices or when you intend to install additional devices. The system may become unstable or may not boot up if the power is inadequate.

•

If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.

1-10Chapter 1: Product introduction

2. CPU and Chassis fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN)

CPU_FAN

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

Rotation

+12V

GND

CHA_FAN

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT fan connectors

SATA2

GND

RSATA_RXN2

RSATA_RXP2

GND

RSATA_TXN2

RSATA_TXP2

GND

SATA1

GND

RSATA_RXN1

RSATA_RXP1

GND

RSATA_TXN1

RSATA_TXP1

GND

SATA4

GND

RSATA_RXN4

RSATA_RXP4

GND

RSATA_TXN4

RSATA_TXP4

GND

SATA3

GND

RSATA_RXN3

RSATA_RXP3

GND

RSATA_TXN3

RSATA_TXP3

GND

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT SATA connectors

Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector.

DO NOT forget to connect the fan cables to the fan connectors. Insufcient air ow inside

the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors!

Only the 4-pin CPU fan supports the ASUS Q-Fan feature.

3. Serial ATA connectors (7-pin SATA1-4)

These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/s hard disk drives and optical disk drives. The Serial ATA 3Gb/s is backward compatible with the

Serial ATA 1.5Gb/s specication. The data transfer rate of the Serial ATA 3Gb/s is faster

than the standard parallel ATA (133 MB/s).

ASUS P5G41T-M LX2 Series1-11

4. IDE connector (40-1 pin PRI_IDE)

PRI_IDE

NOTE:Orient the red markings on the IDE ribbon cable to PIN 1.

PIN1

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT IDE connector

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT Internal audio connecto

Right Audio Channel

GND

Left Audio Channel

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

blue connector to the motherboard’s IDE connector, then select one of the following modes to congure your device.

Drive jumper setting Mode of device(s) Cable connector

Single device Cable-Select or Master - Black

Cable-Select

Two devices

Master Master

Slave Slave

• Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA cable connector. This prevents incorrect insertion when you connect the IDE cable.

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

Master Black

Slave Gray

Black or gray

If any device jumper is set as “Cable-Select,” ensure that all other device jumpers have the same setting.

5. Optical drive audio connector (4-pin CD)

These connectors allow you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card.

1-12Chapter 1: Product introduction

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

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT USB2.0 connectors

PIN 1

USB+5V

USB_P6-

USB_P6+

GND

USB+5V

USB_P5-

USB_P5+

GND

USB56

PIN 1

USB+5V

USB_P8-

USB_P8+

GND

USB+5V

USB_P7-

USB_P7+

GND

USB78

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT Floppy disk drive connecto

NOTE:

Orient the red markings on

the floppy ribbon cable to PIN 1.

FLOPPY

These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system

chassis. These USB connectors comply with USB 2.0 specication that supports up to

480Mbps connection speed.

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

The USB 2.0 module is purchased separately.

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

This connector is for the oppy disk drive (FDD) signal cable. Insert one end of the

cable to this connector, then connect the other end to the signal connector at the back

of the oppy disk drive.

• Pin 5 on the connector is removed to prevent incorrect cable connection when using a FDD cable with a covered Pin 5.

• The oppy disk drive signal cable is purchased separately.

• The Floppy disk drive connector is an optional item for P5G41T-M LX2 and P5G41T-M LX2/GB.

ASUS P5G41T-M LX2 Series1-13

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

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT Front panel audio connecto

AAFP

PIN 1

GND

PRESENCE#

SENSE1_RETUR

SENSE2_RETUR

PORT1 L

PORT1 R

PORT2 R

SENSE_SEND

PORT2 L

HD-audio-compliant

pin definition

PIN 1

AGNDNCNC

MIC2

MICPWR

Line out_R

Line out_L

Legacy AC’97

compliant definition

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT Chassis intrusion connecto

+5VSB_MB

Chassis Signal

GND

CHASSIS

This connector is for a chassis-mounted front panel audio I/O module that supports either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector.

• We recommend that you connect a high-denition front panel audio module to this connector to avail of the motherboard’s high-denition audio capability.

• If you want to connect a high-denition front panel audio module to this connector, set the Front Panel Type item in the BIOS setup to [HD Audio]. If you want to connect an AC'97 front panel audio module to this connector, set the item to [AC97]. By default, this connector is set to [HD Audio]. See section 2.4.2 Chipset for details.

9. Chassis intrusion connector (4-1 pin CHASSIS)

This connector is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector. The chassis intrusion sensor or switch sends a high-level signal to this connector when a chassis component is removed or replaced. The signal is then generated as a chassis intrusion event.

By default, the pins labeled “Chassis Signal” and “GND” are shorted with a jumper cap. Remove the jumper caps only when you intend to use the chassis intrusion detection feature.

The Chassis intrusion connector is an optional item for P5G41T-M LX2 and P5G41T-M LX2/GB.

1-14Chapter 1: Product introduction

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

PIN 1

PWR BTN

PLED+

PLED-

PWR

GND

IDE_LED+

IDE_LED-

Ground

Reset

F_PANEL

PWR LED

HD LED RESET

P5G41T-M LX2/GB/LPT

P5G41T-M LX2/GB/LPT System panel connecto

This connector supports several chassis-mounted functions.

• System power LED (2-pin PLED)

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

• Hard disk drive activity LED (2-pin +HDLED)

This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable

to this connector. The HD LED lights up or ashes when data is read from or written to

the HDD.

• ATX power button/soft-off button (2-pin PWRBTN)

This 2-pin connector is for the system power button.

• Reset button (2-pin RESET)

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

ASUS P5G41T-M LX2 Series1-15

1.8 Software support

1.8.1 Installing an operating system

This motherboard supports Windows® XP/Vista/7 operating systems (OS). Always install the

latest OS version and corresponding updates to maximize the features of your hardware.

• Motherboard settings and hardware options vary. Refer to your OS documentation for detailed information.

• Ensure that you install Windows® XP Service Pack 3 or later versions / Windows® Vista Service Pack 1 or later versions before installing the drivers for better compatibility and system stability.

1.8.2 Support DVD information

The Support DVD that comes with the motherboard package contains the drivers, software applications, and utilities that you can install to avail all motherboard features.

The contents of the Support DVD are subject to change at any time without notice. Visit the ASUS website at www.asus.com for updates.

To run the Support DVD

Place the Support DVD to the optical drive. The DVD automatically displays the Drivers menu if Autorun is enabled in your computer.

The following screen is for reference only.

Click an item to install

If Autorun is NOT enabled in your computer, browse the contents of the Support DVD to

locate the le ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run

the DVD.

Click an icon to display Support DVD/ motherboard information

1-16Chapter 1: Product introduction

Chapter 2

BIOS information

2.1 Managing and updating your BIOS

Save a copy of the original motherboard BIOS le to a USB ash disk in case you need to

restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility.

2.1.1 ASUS Update utility

The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows® environment.

• ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP).

• This utility is available in the support DVD that comes with the motherboard package.

Installing ASUS Update

To install ASUS Update:

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

2. Click the Utilities tab, then click ASUS Update.

3. Follow the onscreen instructions to complete the installation.

Quit all Windows® applications before you update the BIOS using this utility.

Updating the BIOS

To update the BIOS:

1. From the Windows® desktop, click Start > Programs > ASUS > ASUSUpdate >

ASUSUpdate to launch the ASUS Update utility.

2. From the dropdown list, select any of the updating process:

Updating from the Internet

a. Select Update BIOS from the Internet, then click Next.

b. Select the ASUS FTP site nearest you to avoid network trafc, or click Auto

Select then click Next.

c. From the FTP site, select the BIOS version that you want to download then click

Next.

ASUS P5G41T-M LX2 Series2-1

The ASUS Update utility is capable of updating itself through the Internet. Always update the utility to avail all its features.

Updating from a BIOS file

a. Select Update BIOS from a le, then click Next.

b. Locate the BIOS le from the Open window, then click Open.

3. Follow the onscreen instructions to complete the updating process.

2.1.2 ASUS EZ Flash 2

The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based utility.

Before you start using this utility, download the latest BIOS le from the ASUS website at

www.asus.com.

To update the BIOS using EZ Flash 2:

1. Insert the USB ash disk that contains the latest BIOS le to the USB port, then launch

EZ Flash 2 in either of these two ways:

• Press <Alt> + <F2> during POST.

• Enter the BIOS setup program. Go to the Tools menu to select EZ Flash 2 and press <Enter> to enable it.

2. Press <Tab> to switch between drives until the correct BIOS le is found, then press <Enter>. EZ Flash 2 performs the BIOS updating process and automatically reboots the system when done.

ASUSTek EZ Flash 2 BIOS ROM Utility V3.44

FLASH TYPE: MXIC 25L8005

Current ROM

BOARD:P5G41T-M LX2/GB/LPT VER:0305 (H:00 B:00) DATE: 10/29/2009

PATH: A:\

Update ROM

BOARD: Unknown VER: Unknown DATE: Unknown

Note

[Enter] Select or Load [Tab] Switch [V] Drive Info

[Up/Down/Home/End] Move [B] Backup [ESC] Exit

• This function supports USB ash disks with FAT 32/16 format and single partition only.

• DO NOT shut down or reset the system while updating the BIOS to prevent system boot failure!

2-2Chapter 2: BIOS information

2.1.3 ASUS CrashFree BIOS

The ASUS CrashFree BIOS is an auto recovery tool that allows you to restore the BIOS le

when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS

le using the motherboard support DVD or a removable device that contains the updated BIOS le.

• Before using this utility, rename the BIOS le in the removable device into

PG41TML2.ROM (P5G41T-M LX2) / PG41TMLG.ROM (P5G41T-M LX2/GB) / PG41TMLP.ROM (P5G41T-M LX2/GB/LPT).

• The BIOS le in the support DVD may not be the latest version. Download the latest BIOS le from the ASUS website at www.asus.com.

• The removable devices that ASUS CrashFree BIOS support vary with motherboard

models. For motherboards without the oppy connector, prepare a USB ash disk before

using this utility.

Recovering the BIOS

To recover the BIOS:

1. Turn on the system.

2. Insert the support DVD to the optical drive or the removable device that contains the

BIOS le to the USB port or to the oppy disk drive, if supported.

3. The utility automatically checks the devices for the BIOS le. When found, the utility reads the BIOS le and starts ashing the corrupted BIOS le.

4. Turn off the system after the utility completes the updating process and turn on again.

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

Ensure to load the BIOS default settings to ensure system compatibility and stability. Select the Load Setup Defaults item under the Exit menu. Refer to section 2.8 Exit menu for details.

2.2 BIOS setup program

Use the BIOS Setup program to update the BIOS or congure its parameters. The BIOS

screens include navigation keys and brief online help to guide you in using the BIOS Setup program.

Entering BIOS Setup at startup

To enter BIOS Setup at startup:

• Press <Delete> during the Power-On Self Test (POST). If you do not press <Delete>,

POST continues with its routines.

Entering BIOS Setup after POST

To enter BIOS Setup after POST:

• Press <Ctrl>+<Alt>+<Del> simultaneously.

• Press the reset button on the system chassis.

• Press the power button to turn the system off then back on. Do this option only if you

failed to enter BIOS Setup using the rst two options.

ASUS P5G41T-M LX2 Series2-3

Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force reset from a running operating system can cause damage to your data or system. We recommend to always shut down the system properly from the operating system.

• The default BIOS settings for this motherboard apply for most conditions to ensure optimum performance. If the system becomes unstable after changing any BIOS settings, load the default settings to ensure system compatibility and stability. Select the Load Setups Default item under the Exit Menu. See section 2.8 Exit Menu.

• The BIOS setup screens shown in this section are for reference purposes only, and may not exactly match what you see on your screen.

• Visit the ASUS website at www.asus.com to download the latest BIOS le for this motherboard.

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.

Main Advanced Power Boot Tools Exit

System Time [12:56:38]

System Date [Tue 01/08/2002] Legacy Diskette A [1.44M, 3.5 in.]

Primary IDE Master :[Not Detected] Primary IDE Slave :[Not Detected] SATA 1 :[Not Detected] SATA 2 :[Not Detected] SATA 3 :[Not Detected] SATA 4 :[Not Detected]

 StorageConguration

System Information

BIOS SETUP UTILITY

Use [ENTER], [TAB] or [SHIFT-TAB] to select

aeld.

Use [+] or [-] to

conguresystemtime.

Select Screen

Select Item +- Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit

2.3.1 System Time [xx:xx:xx]

Sets the system time.

2.3.2 System Date [Day xx/xx/xxxx]

Sets the system date.

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

Sets the type of oppy drive installed. Conguration 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.]

This item is for P5G41T-M LX2/GB/LPT only.

2-4Chapter 2: BIOS information

2.3.4 Primary IDE Master/Slave, SATA1~4

While entering Setup, the BIOS automatically detects the presence of IDE/SATA devices. There is a separate submenu for each IDE/SATA device. Select a device item then press <Enter> to display the IDE/SATA device information.

The BIOS automatically detects the values opposite the dimmed items (Device, Vendor, Size,

LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring). These values are not user-congurable. These items show Not Detected if no IDE/SATA device is installed in the system.

Type [Auto]

Selects the type of IDE drive. Setting to Auto allows automatic selection of the appropriate

IDE device type. Select CDROM if you are specically conguring a CD-ROM drive. Select

ARMD (ATAPI Removable Media Device) if your device is either a ZIP, LS-120, or MO drive.

Conguration options: [Not Installed] [Auto] [CDROM] [ARMD]

This item does not appear when you select the SATA 1/2/3/4 devices.

LBA/Large Mode [Auto]

Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device supports this mode, and if the device was not previously formatted with LBA mode disabled.

Conguration options: [Disabled] [Auto]

Block (Multi-Sector Transfer) M [Auto]

Enables or disables data multi-sectors transfers. When this item is set to [Auto], the data transfer from and to the device occurs multiple sectors at a time if the device supports multi-sector transfer feature. When this item is set to [Disabled], the data transfer from and

to the device occurs one sector at a time. Conguration options: [Disabled] [Auto]

PIO Mode [Auto]

Selects the PIO mode. Conguration options: [Auto] [0] [1] [2] [3] [4]

DMA Mode [Auto]

Selects the DMA mode. Conguration options: [Auto]

SMART Monitoring [Auto]

Sets the Smart Monitoring, Analysis, and Reporting Technology.

Conguration options: [Auto] [Disabled] [Enabled]

32Bit Data Transfer [Enabled]

Enables or disables 32-bit data transfer. Conguration options: [Disabled] [Enabled]

ASUS P5G41T-M LX2 Series2-5

2.3.5 Storage Conguration

The items in this menu allow you to set or change the congurations for the IDE/SATA

devices installed in the system. Select an item then press <Enter> if you want to congure the item.

ATA/IDE Conguration [Enhanced]

Allows you to set the ATA/IDE conguration. Conguration options: [Disabled] [Compatible] [Enhanced]

Enhanced Mode Support On [S-ATA]

Sets Serial ATA, Parallel ATA or both as native mode.

Conguration options: [S-ATA] [S-ATA+P-ATA] [P-ATA].

IDE Detect Time Out (Sec) [35]

Selects the time out value for detecting ATA/ATAPI devices.

Conguration options: [0] [5] [10] [15] [20] [25] [30] [35]

2.3.6 System Information

This menu gives you an overview of the general system specications. The BIOS

automatically detects the items in this menu.

BIOS Information

Displays the auto-detected BIOS information.

Processor

Displays the auto-detected CPU specication.

System Memory

Displays the auto-detected system memory.

2.4 Advanced menu

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

Take caution when changing the settings of the Advanced menu items. Incorrect eld

values can cause the system to malfunction.

Main Advanced Power Boot Tools Exit

 CPUConguration

Chipset

 OnboardDevicesConguration  USBConguration

PCIPnP

BIOS SETUP UTILITY

CongureCPU.

2-6Chapter 2: BIOS information

2.4.1 CPU Conguration

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

Ratio CMOS Setting [Auto]

Sets the ration between CPU core clock and the FSB frequency. Conguration option: [Auto]

• If an invalid ratio is set in CMOS then actual and set values may differ.

• Key in ratio numbers directly.

C1E Support [Enabled]

Allows you to enable or disable C1E Support. Conguration options: [Disabled] [Enabled]

Max CPUID Value Limit [Disabled]

Setting this item to [Enabled] allows legacy operating systems to boot even without support for CPUs with extended CPUID functions. Conguration options: [Disabled] [Enabled]

Intel(R) Virtualization Tech [Enabled]

Enables or disables Intel® Virtualization Technology. Virtualization enhanced by Intel®

Virtualization Technology allows a platform to run multiple operating systems and applications in independent partitions. With virtualization, one computer system can function as multiple virtual systems. Conguration options: [Enabled] [Disabled]

CPU TM function [Enabled]

Enables or disables Intel® CPU Thermal Monitor (TM) function, a CPU overheating protection function. When enabled, the CPU core frequency and voltage are reduced when

the CPU overheats. Conguration options: [Disabled] [Enabled]

Execute-Disable Bit Capability [Enabled]

Allows you to enable or disable the No-Execution Page Protection Technology. Setting this item to [Disabled] forces the XD feature ag to always return to zero (0).

Conguration options: [Disabled] [Enabled]

The following item appears only when you installed an Intel® Pentium® 4 or later CPU that supports the Enhanced Intel SpeedStep® Technology (EIST).

Intel(R) SpeedStep(TM) Tech [Enabled]

Allows you to use the Enhanced Intel® SpeedStep® Technology. When this item is set to [Enabled], you can adjust the system power settings in the operating system to use the EIST feature. Set this item to [Disabled] if you do not want to use the EIST. Conguration options:

[Enabled] [Disabled]

ASUS P5G41T-M LX2 Series2-7

2.4.2 Chipset

The Chipset menu allows you to change the advanced chipset settings. Select an item then press <Enter> to display the submenu.

North Bridge Conguration

Memory Remap Feature [Enabled]

Enables or disables the remapping of overlapped PCI memory above the total physical

memory. Conguration options: [Enabled] [Disabled]

Congure DRAM Timing by SPD [Enabled]

Enables or disables conguring DRAM Timing by SPD. Conguration options: [Enabled] [Disabled]

Initiate Graphic Adapter [PEG/PCI]

Allows you to select the primary boot device. Conguration options: [IGD] [PCI/IGD] [PCI/PEG] [PEG/IGD] [PEG/PCI]

IGD Graphics Mode Select [Enabled, 32MB]

Allows you to select the amout of system memory used by the Internal graphics device.

Conguration options: [Disabled] [Enabled, 32MB] [Enabled, 48MB] [Enabled, 64MB] [Enabled, 128MB] [Enabled, 256MB]

GTT Graphics Memory Size [No VT mode, 2MB]

This item is not user- congurable.

DVMT Memory [256MB]

Allows you to select the DVMT memory. Conguration options: [128MB] [256MB] [Maximum DVMT]

The [Maximum DVMT] option only appears when you have installed 1GB system memory or more.

Protect Audio Video Path Mode [Lite]

This item is not user- congurable.

South Bridge Conguration

Audio Controller [Enabled]

Allows you to set the audio controller. Conguration options: [Enabled] [Disabled]

Front Panel Type [HD Audio]

Allows you to select the front panel support type. If High Denition Audio Front Panel is

used, set this item to [HD Audio]. Conguration options: [AC97] [HD Audio]

Onboard Gigabit LAN [Enabled]

Enables or disables the onboard LAN controller. Conguration options: [Enabled] [Disabled]

For P5G41T-M LX2, this item shows Onboard LAN.

Onboard LAN Boot ROM [Disabled]

Enables or disables the boot ROM in the onboard LAN controller.

Conguration options: [Disabled] [Enabled]

2-8Chapter 2: BIOS information

2.4.3 Onboard Devices Conguration

Serial Port1 Address [3F8/IRQ4]

Allows you to select the Serial Port1 base address.

Conguration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]

The following item is for P5G41T-M LX2 and P5G41T-M LX2/GB without an LPT port at the back panel.

Serial Port1 Mode [Normal]

Selects the mode for Serial Port1. Conguration options: [Normal]

The following item is for P5G41T-M LX2/GB/LPT with an LPT port at the back panel.

Parallel Port Address [378]

Allows you to select the Parallel Port base addresses.

Conguration options: [Disabled] [378] [278] [3BC]

Parallel Port Mode [Normal]

Allows you to select the Parallel Port mode.

Conguration options: [Normal] [EPP+ECP] [EPP] [ECP]

Parallel Port IRQ [IRQ7]

Allows you to select parallel port IRQ. Conguration options: [IRQ5] [IRQ7]

ASUS P5G41T-M LX2 Series2-9

2.4.4 USB Conguration

The items in this menu allows you to change the USB-related features. Select an item then press <Enter> to display the conguration options.

The Module Version and USB Devices Enabled items show the auto-detected values. If no USB device is detected, the item shows None.

USB Functions [Enabled]

Enables or disables the USB functions. Conguration options: [Disabled] [Enabled]

USB 2.0 Controller [Enabled]

Enables or disables USB 2.0 controller. Conguration options: [Enabled] [Disabled]

Legacy USB Support [Auto]

Enables or disables support for Legacy USB storage devices, including USB ash drives and

USB hard drives. Setting this item to [Auto] allows the system to detect the presence of USB devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device

is detected, the legacy USB support is disabled. Conguration options: [Disabled] [Enabled] [Auto]

USB 2.0 Controller Mode [HiSpeed]

Allows you to congure the USB 2.0 controller in HiSpeed (480Mbps) or Full Speed (12Mbps). Conguration options: [FullSpeed] [HiSpeed]

The following items only appear when a USB storage device is plugged in.

USB Mass Storage Device Conguration

USB Mass Storage Reset Delay [20 Sec]

Allows you to set the maximum time that the BIOS waits for the USB storage device to

initialize. Conguration options: [10 Sec] [20 Sec] [30 Sec] [40 Sec]

Emulation Type [Auto]

Allows you to select the emulation type. Conguration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM]

2-10Chapter 2: BIOS information

2.4.5 PCI PnP

The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices. The menu includes setting IRQ and DMA channel resources for either PCI/PnP or legacy ISA

devices, and setting the memory size block for legacy ISA devices.

Take caution when changing the settings of the PCI PnP menu items. Incorrect eld values

can cause the system to malfunction.

Plug and Play O/S [No]

When this item is set to [No], BIOS congures all the devices in the system. When this item is set to [Yes] and if you install a Plug and Play operating system, the operating system

congures the Plug and Play devices not required for boot. Conguration options: [No] [Yes]

2.5 Power menu

The Power menu items allow you to change the settings for the Advanced Power Management (APM). Select an item then press <Enter> to display the conguration options.

Main Advanced Power Boot Tools Exit

Suspend Mode [Auto]

ACPI 2.0 Support [Enabled] ACPI APIC Support [Enabled]

APMConguration

Hardware Monitor

BIOS SETUP UTILITY

Select the ACPI state used for System Suspend.

2.5.1 Suspend Mode [Auto]

Selects the Advanced Conguration and Power Interface (ACPI) state to be used for system suspend. Conguration options: [S1 (POS) Only] [S3 Only] [Auto]

2.5.2 ACPI 2.0 Support [Enabled]

Allows you to add more tables for Advanced Conguration and Power Interface (ACPI) 2.0 specications. Conguration options: [Disabled] [Enabled]

2.5.3 ACPI APIC Support [Enabled]

Enables or disables the Advanced Conguration and Power Interface (ACPI) support in the Application-Specic Integrated Circuit (ASIC). When this item is set to [Enabled], the ACPI APIC table pointer is included in the RSDT pointer list. Conguration options: [Disabled] [Enabled]

ASUS P5G41T-M LX2 Series2-11

2.5.4 APM Conguration

Restore on AC Power Loss [Power Off]

When this item is set to [Power Off], the system goes into OFF state after an AC power loss. When this item is set to [Power On], the system goes into ON state after an AC power loss. When this item is set to [Last State], the system goes into either OFF or ON state, whatever

the system state was before the AC power loss. Conguration options: [Power Off] [Power On] [Last State]

Power On By RTC Alarm [Disabled]

Enables or disables RTC to generate a wake event. When this item is set to [Enabled], the items RTC Alarm Date, RTC Alarm Hour, RTC Alarm Minute, and RTC Alarm Second appear

with set values. Conguration options: [Disabled] [Enabled]

Power On By External Modem [Disabled]

Enables or disables RI to generate a wake event. Conguration options: [Disabled] [Enabled]

Power On by PCI(E) Device [Disabled]

Enables or disables a PCI/PCIe device to generate a wake event. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead.

Conguration options: [Disabled] [Enabled]

Power On By PS/2 Keyboard [Disabled]

Enables or disables the PS/2 keyboard to generate a wake event. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead.

Conguration options: [Disabled] [Space Bar] [Power Key] [Ctrl-Esc]

Power On By PS/2 Mouse [Disabled]

Enables or disables the PS/2 mouse to generate a wake event. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead.

Conguration options: [Disabled] [Enabled]

2.5.5 Hardware Monitor

CPU Temperature [xxxºC/xxxºF] or [Ignored] MB Temperature [xxxºC/xxxºF] or [Ignored]

The onboard hardware monitor automatically detects and displays the motherboard and CPU temperatures. Select [Ignored] if you do not want the detected temperatures to be displayed.

CPU/Chassis Fan Speed [N/A], [xxxxRPM], or [Ignored]

The onboard hardware monitor automatically detects and displays the CPU/chassis fan

speed in rotations per minute (RPM). If the fan is not connected to the motherboard, the eld

shows [N/A]. Select [Ignored] if you do not want the detected speed to be displayed.

VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage [xxxV] or [Ignored]

The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators.

CPU Q-Fan Function [Disabled]

Enables or disables the CPU Q-Fan function. Conguration options: [Disabled] [Enabled]

2-12Chapter 2: BIOS information

2.6 Boot menu

The Boot menu items allow you to change the system boot options. Select an item then press <Enter> to display the submenu.

Main Advanced Power Boot Tools Exit

Boot Settings

Boot Device Priority

 BootSettingsConguration

Security

2.6.1 Boot Device Priority

1st ~ xxth Boot Device

These items specify the boot device priority sequence from the available devices. The number of device items that appears on the screen depends on the number of devices

installed in the system. Conguration options: [Removable Dev.] [Hard Drive] [ATAPI CD-ROM] [Disabled]

• To select the boot device during system startup, press <F8> when ASUS Logo appears.

• To access Windows® OS in Safe Mode, do any of the following:

• Press <F5> when ASUS Logo appears.

• Press <F8> after POST.

2.6.2 Boot Settings Conguration

Quick Boot [Enabled]

Enabling this item allows the BIOS to skip some power on self tests (POST) while booting to decrease the time needed to boot the system. When set to [Disabled], BIOS performs all the

POST items. Conguration options: [Disabled] [Enabled]

Full Screen Logo [Enabled]

This allows you to enable or disable the full screen logo display feature. Conguration options: [Disabled] [Enabled]

BIOS SETUP UTILITY

SpeciestheBoot

Device Priority sequence.

Avirtualoppydisk drive (Floppy Drive B: ) may appear when you set the CD-ROM drive

astherstboot

device.

Set this item to [Enabled] to use the ASUS MyLogo2™ feature.

AddOn ROM Display Mode [Force BIOS]

Sets the display mode for option ROM. Conguration options: [Force BIOS] [Keep Current]

Bootup Num-Lock [On]

Allows you to select the power-on state for the NumLock.

Conguration options: [Off] [On]

Wait For ‘F1’ If Error [Enabled]

When set to Enabled, the system waits for the F1 key to be pressed when error occurs.

Conguration options: [Disabled] [Enabled]

ASUS P5G41T-M LX2 Series2-13

Hit ‘DEL’ Message Display [Enabled]

When set to [Enabled], the system displays the message Press DEL to run Setup during

POST. Conguration options: [Disabled] [Enabled]

2.6.3 Security

The Security menu items allow you to change the system security settings. Select an item then press <Enter> to display the conguration options.

Change Supervisor Password

Select this item to set or change the supervisor password. The Supervisor Password item on top of the screen shows the default Not Installed. After you set a password, this item shows Installed.

To set a Supervisor Password:

1. Select the Change Supervisor Password item and press <Enter>.

2. In the password box, key in a password containing up to six letters or numbers, or

both, then press <Enter>.

3. Conrm the password when prompted.

The message Password Installed appears after you successfully set your password. To change the supervisor password, follow the same steps in setting a supervisor password. To clear the supervisor password, select the Change Supervisor Password then press

<Enter> twice. The message Password uninstalled appears.

If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock (RTC) RAM. See section 1.6 Jumpers for information on how to erase the RTC RAM.

After you have set a supervisor password, the other items appear to allow you to change other security settings.

User Access Level [Full Access]

This item allows you to select the access restriction to the Setup items.

Conguration options: [No Access] [View Only] [Limited] [Full Access]

[No Access] - prevents user access to the Setup utility. [View Only] - allows access but does not allow change to any eld. [Limited] - allows changes only to selected elds, such as Date and Time. [Full Access] - allows viewing and changing all the elds in the Setup utility.

Change User Password

Select this item to set or change the user password. The User Password item on top of the screen shows the default Not Installed. After you set a password, this item shows Installed.

To set a User Password:

1. Select the Change User Password item and press <Enter>.

2. In the password box, key in a password containing up to six letters or numbers, or

both, then press <Enter>.

3. Conrm the password when prompted.

The message Password Installed appears after you set your password successfully. To change the user password, follow the same steps in setting a user password.

2-14Chapter 2: BIOS information

Clear User Password

Exit system setup after saving the changes.

F10 key can be used for this operation.

Select this item to clear the user password.

Password Check [Setup]

When this item is set to [Setup], BIOS checks for the user password when you access the Setup utility. When this item is set to [Always], BIOS checks for the user password both

when you access Setup and boot the system. Conguration options: [Setup] [Always]

2.7 Tools menu

The Tools menu items allow you to congure options for special functions. Select an item

then press <Enter> to display the sub-menu.

Main Advanced Power Boot Tools Exit

ASUS EZ Flash 2

BIOS SETUP UTILITY

Press ENTER to run the utility to select and update BIOS. This utility supports

1.FAT 12/16/32 (r/w)

2.NTFS (read only)

3.CD-DISC (read only)

2.7.1 ASUS EZ Flash 2

Allows you to run ASUS EZ Flash 2. When you press <Enter>, a conrmation message appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to

conrm your choice. See section 2.1.2 ASUS EZ Flash 2 for details.

2.8 Exit menu

The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items, and save or discard your changes to the BIOS items.

Main Advanced Power Boot Tools Exit

Exit Options

Exit & Save Changes

Exit & Discard Changes Discard Changes

Load Setup Defaults

Pressing <Esc> does not immediately exit this menu. Select one of the options from this menu or <F10> from the legend bar to exit.

BIOS SETUP UTILITY

Exit system setup after saving the changes.

F10 key can be used for this operation.

ASUS P5G41T-M LX2 Series2-15

Asus P5G41T-M LX2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Notices

Safety information

About this guide

1.1 Before you proceed

1.2 Motherboard overview

1.2.1 Motherboard layout

1.2.2 Layout contents

1.3 Central Processing Unit (CPU)

1.4 System memory

1.4.1 Overview

1.5 Expansion slots

1.5.1 Installing an expansion card

1.5.3 PCI slots

1.5.4 PCI Express x16 slot

1.6 Jumpers

1.7 Connectors

1.7.1 Rear panel ports

1.7.2 Internal connectors

1.8 Software support

1.8.1 Installing an operating system

1.8.2 Support DVD information

2.1 Managing and updating your BIOS

2.1.1 ASUS Update utility

2.1.2 ASUS EZ Flash 2

2.1.3 ASUS CrashFree BIOS

2.2 BIOS setup program

2.3 Main menu

System Time [12:56:38]

System Date [Tue 01/08/2002] Legacy Diskette A [1.44M, 3.5 in.]

2.3.4 Primary IDE Master/Slave, SATA1~4

2.3.6 System Information

2.4 Advanced menu

2.4.2 Chipset

2.4.5 PCI PnP

2.5 Power menu

ACPI 2.0 Support [Enabled] ACPI APIC Support [Enabled]

2.5.5 Hardware Monitor

2.6 Boot menu

2.6.1 Boot Device Priority

2.6.3 Security

2.7 Tools menu

2.7.1 ASUS EZ Flash 2

2.8 Exit menu