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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
Copyright © 2009 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 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, modified or altered, unless such repair, modification 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.
Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners’ benefit, without intent to infringe.
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 defined in the GPL) for the GPL Software, and/or the complete corresponding source code of the LGPL Software (with the complete machinereadable “work that uses the Library”) for a period of three years after our last shipment of the product including the GPL Software and/or LGPL Software, which will be no earlier than December 1, 2011, either
(1)for free by downloading it from http://support.asus.com/download;
or
(2)for the cost of reproduction and shipment, which is dependent on the preferred carrier and the location where you want to have it shipped to, by sending a request to:
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 notification 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).
ii
Contents
Notices.......................................................................................................... |
v |
Safety information....................................................................................... |
vi |
About this guide.......................................................................................... |
vi |
P5G41T-M LX2 Series specifications summary...................................... |
viii |
Chapter 1: |
Product introduction |
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1.1 |
Before you proceed...................................................................... |
1-1 |
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1.2 |
Motherboard overview................................................................. |
1-2 |
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1.2.1 |
Motherboard layout .......................................................... |
1-2 |
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1.2.2 |
Layout contents . .............................................................. |
1-3 |
1.3 |
Central Processing Unit (CPU).................................................... |
1-3 |
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1.4 |
System memory............................................................................ |
1-4 |
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1.4.1 |
Overview .......................................................................... |
1-4 |
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1.4.2 |
Memory configurations . ................................................... |
1-4 |
1.5 |
Expansion slots............................................................................ |
1-6 |
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1.5.1 |
Installing an expansion card ............................................ |
1-6 |
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1.5.2 |
Configuring an expansion card ........................................ |
1-6 |
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1.5.3 |
PCI slots . ......................................................................... |
1-6 |
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1.5.4 |
PCI Express x16 slot . ...................................................... |
1-6 |
1.6 |
Jumpers |
......................................................................................... |
1-7 |
1.7 |
Connectors.................................................................................... |
1-9 |
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1.7.1 .............................................................. |
Rear panel ports |
1-9 |
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1.7.2 ........................................................ |
Internal connectors |
1-10 |
1.8 |
Software ........................................................................support |
1-16 |
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1.8.1 ....................................... |
Installing an operating system |
1-16 |
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1.8.2 ............................................... |
Support DVD information |
1-16 |
Chapter 2: |
BIOS information |
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2.1 |
Managing and updating your BIOS............................................. |
2-1 |
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2.1.1 |
ASUS Update utility......................................................... |
2-1 |
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2.1.2 ASUS EZ Flash 2............................................................ |
2-2 |
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2.1.3 |
ASUS CrashFree BIOS................................................... |
2-3 |
2.2 |
BIOS setup program..................................................................... |
2-3 |
|
2.3 |
Main menu..................................................................................... |
2-4 |
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2.3.1 |
System Time.................................................................... |
2-4 |
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2.3.2 |
System Date.................................................................... |
2-4 |
iii
Contents
|
2.3.3 |
Legacy Diskette A............................................................ |
2-4 |
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2.3.4 |
Primary IDE Master/Slave, SATA1~4.............................. |
2-5 |
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2.3.5 |
Storage Configuration...................................................... |
2-6 |
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2.3.6 |
System Information.......................................................... |
2-6 |
2.4 |
Advanced menu............................................................................ |
2-6 |
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2.4.1 |
CPU Configuration........................................................... |
2-7 |
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2.4.2 |
Chipset............................................................................ |
2-8 |
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2.4.3 |
Onboard Devices Configuration...................................... |
2-9 |
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2.4.4 |
USB Configuration......................................................... |
2-10 |
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2.4.5 |
PCI PnP.......................................................................... |
2-11 |
2.5 |
Power menu................................................................................ |
2-11 |
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2.5.1 |
Suspend Mode............................................................... |
2-11 |
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2.5.2 |
ACPI 2.0 Support............................................................ |
2-11 |
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2.5.3 |
ACPI APIC Support........................................................ |
2-11 |
|
2.5.4 |
APM Configuration........................................................ |
2-12 |
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2.5.5 |
Hardware Monitor.......................................................... |
2-12 |
2.6 |
Boot menu................................................................................... |
2-13 |
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2.6.1 |
Boot Device Priority....................................................... |
2-13 |
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2.6.2 |
Boot Settings Configuration........................................... |
2-13 |
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2.6.3 |
Security.......................................................................... |
2-14 |
2.7 |
Tools menu.................................................................................. |
2-15 |
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2.7.1 |
ASUS EZ Flash 2.......................................................... |
2-15 |
2.8 |
Exit menu..................................................................................... |
2-15 |
|
iv
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 modifications 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 fix it by yourself. Contact a 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, 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 qualified service technician or your retailer.
About this guide
This user guide contains the information you need when installing and configuring 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.
vi
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 find 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 flyers, 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 specifications summary
CPU |
LGA775 socket for Intel® Core™2 Quad / Core™2 Extreme |
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/ Core™2 Duo / Pentium® dual-core |
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/ Celeron® dual-core / Celeron® processors |
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Supports Intel® 45nm multi-core CPU |
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Supports Intel® Hyper-Threading Technology and |
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Enhanced Intel SpeedStep® Technology (EIST) |
|
* Refer to www.asus.com for the Intel® CPU support list. |
Chipset |
Northbridge: Intel® G41 |
|
Southbridge: Intel® ICH7 |
Front Side Bus
Memory
Graphics
Expansion slots
Storage
LAN
Audio
USB
1333/1066/800 MHz
Dual channel memory architecture
-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
(Qualified 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.
Integrated Intel® Graphics Media Accelerator (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 x16 slot
1 x PCIe x1 slot (optional)
2 x PCI slots
1 x Ultra DMA 100/66 connector
4 x Serial ATA 3Gb/s ports
P5G41T-M LX2/GB and P5G41T-M LX2/GB/LPT: Realtek® RTL8112L Gigabit Ethernet PCIe controller
P5G41T-M LX2: Realtek® RTL8103EL 10/100Mbps Ethernet PCIe controller
VIA® VT1705 High Definition Audio 6-channel CODEC
Supports Multi-streaming technology
Supports up to 8 USB 2.0/1.1 ports (4 ports at mid-board, 4 ports at the back panel)
(continued on the next page)
viii
P5G41T-M LX2 Series specifications summary
Back panel I/O ports
Internal connectors
ASUS unique features
BIOS
Manageability
Support DVD
Accessories
Form factor
1 x PS/2 keyboard port
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
2 USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1 ports
1 x IDE connector
4 x Serial ATA connectors
1 x High definition 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 CrashFree BIOS 3
ASUS Q-Fan
ASUS EZ Flash 2
ASUS MyLogo 2
8Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0, ACPI 2.0a, SM BIOS 2.5
WOL, PXE, PME Wake up, WOR by Ring
Drivers
ASUS PC Probe II
ASUS Update
Anti-Virus software (OEM version)
2 x Serial ATA cables
1 x Ultra DMA 100/66 cable
1 x I/O shield
1 x Support DVD
1 x User Manual
MicroATX form factor: 9.6 in x 7.5 in (24.4 cm x 19.1 cm)
* Specifications are subject to change without notice.
ix
Chapter 1
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.
1.1Before 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.
SB_PWR
P5G41T-M LX2/GB/LPT
ON OFF
Standby Power Powered Off
P5G41T-M LX2/GB/LPT Onboard power LED
1-1 |
ASUS P5G41T-M LX2 Series |
1.2Motherboard overview
1.2.1Motherboard 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.
1 |
2 |
3 |
4 |
5 |
6 |
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19.1cm(7.5in) |
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KBMS KBPWR
ATX12V
COM1
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LPT |
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VGA |
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CHA_FAN |
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CPU_FAN |
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USB34 |
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USBPW1-4 |
LAN1_USB12 |
RTL |
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8112L |
Place this side towards
the rear of the chassis. 
ICS
9LPRS441
AUDIO
LGA775
Intel®
G41
DDR3 DIMM A1 (64bit, 240-pin module) |
DDR3 DIMM B1 (64bit, 240-pin module) |
Lithium Cell
CMOS Power
PRI_IDE
7
24.4cm(9.6in) 2
EATXPWR
Super |
PCIEX16 |
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I/O |
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P5G41T-M LX2/GB/LPT |
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17 |
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SATA4 |
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SATA3 |
8Mb |
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PCI1 |
Intel® |
SATA2 |
BIOS |
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SATA1 |
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ICH7 |
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VIA |
CD |
PCI2 |
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8 |
VT1705 |
SB_PWR |
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FLOPPY |
USB56 USB78 |
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USBPW5-8 |
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CLRTC |
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AAFP |
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CHASSIS |
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F_PANEL |
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16 |
15 |
14 |
4 |
13 12 |
11 |
10 |
9 |
•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 floppy 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.
Chapter 1: Product introduction |
1-2 |
1.2.2Layout contents
Connectors/Jumpers/Slots/LED |
Page |
Connectors/Jumpers/Slots/LED |
Page |
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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 |
1-11 |
12. |
Standby power LED (SB_PWR) |
1-1 |
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3-pin CHA_FAN) |
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4. |
USB device wake-up (3-pin USBPW1-4, USBPW5-8) |
1-8 |
13. |
Chassis intrusion connector |
1-14 |
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(4-1 pin CHASSIS) |
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5. |
LGA775 CPU socket |
1-3 |
14. |
Floppy disk drive connector |
1-13 |
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(34-1 pin FLOPPY) |
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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 |
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1.3Central 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.
The motherboard supports Intel® LGA775 processors with the Intel® Enhanced Intel
SpeedStep® Technology (EIST) and Hyper-Threading Technology.
1-3 |
ASUS P5G41T-M LX2 Series |
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