Asus P5GPL User manual

Motherboard
P5GPL

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Copyright © 2005 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 FORA PARTICULAR PURPOSE.
IN NO EVENT SHALLASUS, 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 MANUALARE FURNISHED
FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGEATANY TIME
WITHOUT NOTICE,AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BYASUS.
ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR
INACCURACIES THAT MAYAPPEAR 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.
E1972E1972
E1972E1972
E1972
First EditionFirst Edition
First EditionFirst Edition
First Edition
January 2005January 2005
January 2005January 2005
January 2005

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Contents
Notices ................................................................................................ vi
Safety information ............................................................................. vii
About this guide ............................................................................... viii
Typography ......................................................................................... ix
P5GPL specifications summary ............................................................ x
Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introduction
1.1 Welcome! .............................................................................. 1-2
1.2 Package contents ................................................................. 1-2
1.3 Special features .................................................................... 1-3
1.3.1 Product highlights................................................... 1-3
1.3.2 ASUS Proactive features ........................................ 1-5
1.3.3 Innovative ASUS features ....................................... 1-5
1.4 Before you proceed .............................................................. 1-6
1.5 Motherboard overview .......................................................... 1-7
1.5.1 Placement direction ................................................ 1-7
1.5.2 Screw holes ............................................................ 1-7
1.5.3 Motherboard layout ................................................ 1-8
1.6 Central Processing Unit (CPU) .............................................. 1-9
1.6.1 Installling the CPU ................................................... 1-9
2.3.2 Installling the CPU heatsink and fan ..................... 1-12
2.3.3 Uninstalling the CPU heatsink and fan .................. 1-14
1.7 System memory ................................................................. 1-16
1.7.1 Overview ............................................................... 1-16
1.7.2 Memory Configurations ......................................... 1-16
1.7.3 Installing a DIMM ................................................... 1-19
1.7.4 Removing a DIMM ................................................. 1-19
1.8 Expansion slots ................................................................... 1-20
1.8.1 Installing an expansion card .................................. 1-20
1.8.2 Configuring an expansion card.............................. 1-20
1.8.3 Interrupt assignments .......................................... 1-21
1.8.4 PCI slots ................................................................ 1-22
1.8.5 PCI Express x16 slot ............................................. 1-22
1.8.6 PCI Express x1 slot ............................................... 1-22
1.9 Jumpers .............................................................................. 1-23

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Contents
1.10 Connectors ......................................................................... 1-26
1.10.1 Rear panel connectors .......................................... 1-26
1.10.2 Internal connectors ............................................... 1-28
Chapter 2: BIOS setupChapter 2: BIOS setup
Chapter 2: BIOS setupChapter 2: BIOS setup
Chapter 2: BIOS setup
2.1 Managing and updating your BIOS ........................................ 2-2
2.1.1 Creating a bootable floppy disk .............................. 2-2
2.1.2 ASUS EZ Flash utility .............................................. 2-3
2.1.3 AFUDOS utility ........................................................ 2-4
2.1.4 ASUS CrashFree BIOS 2 utility ................................ 2-6
2.1.5 ASUS Update utility ................................................ 2-8
2.2 BIOS setup program ........................................................... 2-11
2.2.1 BIOS menu screen ................................................. 2-12
2.2.2 Menu bar ............................................................... 2-12
2.2.3 Navigation keys .................................................... 2-12
2.2.4 Menu items ........................................................... 2-13
2.2.5 Sub-menu items ................................................... 2-13
2.2.6 Configuration fields .............................................. 2-13
2.2.7 Pop-up window ..................................................... 2-13
2.2.8 Scroll bar .............................................................. 2-13
2.2.9 General help .......................................................... 2-13
2.3 Main menu .......................................................................... 2-14
2.3.1 System Time ......................................................... 2-14
2.3.2 System Date ......................................................... 2-14
2.3.3 Legacy Diskette A ................................................ 2-14
2.3.4 Language .............................................................. 2-14
2.3.5 Primary, Third and Fourth IDE Master/Slave ......... 2-15
2.3.6 IDE Configuration .................................................. 2-16
2.3.7 System Information .............................................. 2-17
2.4 Advanced menu .................................................................. 2-18
2.4.1 JumperFree Configuration .................................... 2-18
2.4.2 LAN Cable Status ................................................. 2-21
2.4.3 USB Configuration ................................................. 2-22
2.4.4 CPU Configuration ................................................. 2-23
2.4.5 Chipset ................................................................. 2-24

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Contents
2.4.6 Onboard Devices Configuration ............................ 2-26
2.4.7 PCI PnP ................................................................. 2-27
2.5 Power menu ........................................................................ 2-29
2.5.1 Suspend Mode ...................................................... 2-29
2.5.2 Repost Video on S3 Resume ................................ 2-29
2.5.3 ACPI 2.0 Support .................................................. 2-29
2.5.4 ACPI APIC Support ................................................ 2-29
2.5.5 APM Configuration ................................................ 2-30
2.5.6 Hardware Monitor ................................................. 2-32
2.6 Boot menu .......................................................................... 2-33
2.6.1 Boot Device Priority .............................................. 2-34
2.6.2 Boot Settings Configuration ................................. 2-34
2.6.3 Security ................................................................ 2-36
2.7 Exit menu ........................................................................... 2-38
Chapter 3: Software supportChapter 3: Software support
Chapter 3: Software supportChapter 3: Software support
Chapter 3: Software support
3.1 Installing an operating system ............................................. 3-2
3.2 Support CD information ........................................................ 3-2
3.2.1 Running the support CD ......................................... 3-2
3.2.2 Drivers menu .......................................................... 3-3
3.2.3 Utilities menu .......................................................... 3-4
3.2.4 Manuals menu ......................................................... 3-5
3.2.5 ASUS Contact information ...................................... 3-6

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Notices
Federal Communications Commission StatementFederal Communications Commission Statement
Federal Communications Commission StatementFederal Communications Commission Statement
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.
Canadian Department of Communications StatementCanadian Department of Communications Statement
Canadian Department of Communications StatementCanadian Department of Communications Statement
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 CanadianThis class B digital apparatus complies with Canadian
This class B digital apparatus complies with CanadianThis class B digital apparatus complies with Canadian
This class B digital apparatus complies with Canadian
ICES-003.ICES-003.
ICES-003.ICES-003.
ICES-003.
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.

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Safety information
Electrical safetyElectrical safety
Electrical safetyElectrical safety
Electrical safety
• To prevent electrical shock hazard, disconnect the power cable from
the electrical 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.
• Make sure 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 safetyOperation safety
Operation safetyOperation safety
Operation safety
• Before installing the motherboard and adding devices on it, carefully read
all the manuals that came with the package.
• Before using the product, make sure all cables are correctly 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.

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About this guide
This user guide contains the information you need when installing and
configuring the motherboard.
How this guide is organizedHow this guide is organized
How this guide is organizedHow this guide is organized
How this guide is organized
This manual contains the following parts:
••
••
•Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new
technology it supports. This chapter also lists the hardware setup
procedures that you have to perform when installing system
components. It includes description of the jumpers and connectors on
the motherboard.
••
••
•Chapter 2: BIOS setupChapter 2: BIOS setup
Chapter 2: BIOS setupChapter 2: BIOS setup
Chapter 2: BIOS setup
This chapter tells how to change system settings through the BIOS
Setup menus. Detailed descriptions of the BIOS parameters are also
provided.
••
••
•Chapter 3: Software supportChapter 3: Software support
Chapter 3: Software supportChapter 3: Software support
Chapter 3: Software support
This chapter describes the contents of the support CD that comes
with the motherboard package.
Where to find more informationWhere to find more information
Where to find more informationWhere to find more information
Where to find more information
Refer to the following sources for additional information and for product
and software updates.
1.1.
1.1.
1. ASUS websitesASUS websites
ASUS websitesASUS websites
ASUS websites
The ASUS website provides updated information on ASUS hardware
and software products. Refer to the ASUS contact information.
2.2.
2.2.
2. Optional documentationOptional documentation
Optional documentationOptional documentation
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.

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Conventions used in this guideConventions used in this guide
Conventions used in this guideConventions used in this guide
Conventions used in this guide
To make sure that you perform certain tasks properly, take note of the
following symbols used throughout this manual.
Typography
DANGER/WARNING:DANGER/WARNING:
DANGER/WARNING:DANGER/WARNING:
DANGER/WARNING: Information to prevent injury to yourself
when trying to complete a task.
CAUTION:CAUTION:
CAUTION:CAUTION:
CAUTION: Information to prevent damage to the components
when trying to complete a task.
NOTE:NOTE:
NOTE:NOTE:
NOTE: Tips and additional information to help you complete a
task.
IMPORTANT:IMPORTANT:
IMPORTANT:IMPORTANT:
IMPORTANT: Instructions that you MUST follow to complete a
task.
Bold textBold text
Bold textBold text
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>
Command Means that you must type the command exactly as shown,
then supply the required item or value enclosed in
brackets
Example: At the DOS prompt, type the command line:
afudos /i[filename]
afudos /iP5GD1P.ROM

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P5GPL specifications summary
(continued on the next page)
CPUCPU
CPUCPU
CPU
ChipsetChipset
ChipsetChipset
Chipset
Front Side BusFront Side Bus
Front Side BusFront Side Bus
Front Side Bus
MemoryMemory
MemoryMemory
Memory
Expansion slotsExpansion slots
Expansion slotsExpansion slots
Expansion slots
StorageStorage
StorageStorage
Storage
AudioAudio
AudioAudio
Audio
LANLAN
LANLAN
LAN
OverclockingOverclocking
OverclockingOverclocking
Overclocking
USBUSB
USBUSB
USB
Special featuresSpecial features
Special featuresSpecial features
Special features
BIOS featuresBIOS features
BIOS featuresBIOS features
BIOS features
LGA775 socket for Intel
®
Pentium
®
4/Celeron
®
processor
Compatible with the Intel
®
PCG 04A and 04B processors
Supports Intel
®
Hyper-Threading Technology
Northbridge: Intel
®
915PL
Southbridge: Intel
®
ICH6
800/533 MHz
Dual-channel memory architecture
4 x 184-pin DIMM sockets support up to 2GB of
unbufferred non-ECC 400/333 MHz DDR DIMMs
1 x PCI Express x16 slot
3 x PCI Express x1 slots
3 x PCI slots
Intel
®
ICH6 Southbridge supports:
- 1 x Ultra DMA 100/66/33
Realtek
®
ALC880 8-channel CODEC with Jack-sensing
and Universal Audio Jack (UAJ
®
) technology
S/PDIF out interface support
Marvell
®
88E8053 PCI Express™ Gigabit LAN controller
Supports Marvell
®
Virtual Cable Tester Technology
Supports POST Network-diagnostic program
ASUS AI NOS (Non-delay Overclocking System) feature
ASUS AI Overclocking (Intelligent CPU frequency tuner)
ASUS C.P.R. (CPU Parameter Recall)
CPU, Memory, and PCI Express voltage adjustable
Stepless Frequency Selection(SFS) from 100 MHz up
to 400 MHz at 1 MHz increment
Adjustable FSB/DDR ratio with fixed PCI/PCI-Express
frequencies
Supports up to 8 USB 2.0 ports
ASUS Q-Fan
ASUS CrashFree BIOS 2
ASUS MyLogo™
4 MB Flash ROM, AMI BIOS, PnP, DMI2.0, SM BIOS 2.3,
WfM2.0

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*Specifications are subject to change without notice.
P5GPL specifications summary
Rear panelRear panel
Rear panelRear panel
Rear panel
InternalInternal
InternalInternal
Internal
connectorsconnectors
connectorsconnectors
connectors
PowerPower
PowerPower
Power
RequirementRequirement
RequirementRequirement
Requirement
Form FactorForm Factor
Form FactorForm Factor
Form Factor
Support CDSupport CD
Support CDSupport CD
Support CD
contentscontents
contentscontents
contents
1 x Parallel port
1 x LAN (RJ-45) port
1 x Rear speaker out port
1 x Side speaker out port
1 x Line In port
1 x Line Out port
1 x Microphone port
1 x Center/Subwoofer port
4 x USB 2.0 ports
1 x Serial port (COM)
1 x Coaxial S/PDIF out port
1 x PS/2 keyboard port
1 x PS/2 mouse port
1 x CPU fan connector
1 x Power fan connector
1 x Chassis fan connector
1 x 24-pin ATX power connector
1 x 4-pin ATX 12 V power connector
2 x USB 2.0 connectors for 4 additional USB 2.0 ports
1 x Optical drive audio connector
1 x Chassis intrusion connector
1 x Front panel audio connector
1 x S/PDIF out connector
System panel connector
ATX power supply (with 24-pin and 4-pin 12 V plugs)
ATX 12 V 2.0 compliant
ATX form factor: 12 in x 9.6 in (30.5 cm x 24.4 cm)
Device drivers
ASUS PC Probe
ASUS Live Update utility
Anti-virus utility (OEM version)

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ASUS P5GPLASUS P5GPL
ASUS P5GPLASUS P5GPL
ASUS P5GPL 1-11-1
1-11-1
1-1
1
Product
introduction
This chapter describes the motherboard
features and the new technologies
it supports.

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1-21-2
1-2 Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introduction
1.1 Welcome!
Thank you for buying an ASUSThank you for buying an ASUS
Thank you for buying an ASUSThank you for buying an ASUS
Thank you for buying an ASUS
®®
®®
®
P5GPL motherboard!P5GPL motherboard!
P5GPL motherboard!P5GPL motherboard!
P5GPL motherboard!
The motherboard delivers a host of new features and latest technologies,
making it another standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it,
check the items in your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
MotherboardMotherboard
MotherboardMotherboard
Motherboard ASUS P5GPL motherboard
CablesCables
CablesCables
Cables 2 x Serial ATA signal cables
2 x Serial ATA power cables
1 x Ultra DMA/100 cables
Floppy disk drive cable
AccessoriesAccessories
AccessoriesAccessories
Accessories I/O shield
Application CDsApplication CDs
Application CDsApplication CDs
Application CDs ASUS motherboard support CD
DocumentationDocumentation
DocumentationDocumentation
Documentation User guide
If any of the above items is damaged or missing, contact your retailer.

ASUS P5GPLASUS P5GPL
ASUS P5GPLASUS P5GPL
ASUS P5GPL 1-31-3
1-31-3
1-3
1.3 Special features
1.3.11.3.1
1.3.11.3.1
1.3.1 Product highlightsProduct highlights
Product highlightsProduct highlights
Product highlights
Latest processor technologyLatest processor technology
Latest processor technologyLatest processor technology
Latest processor technology
The motherboard comes with a 775-pin surface mount Land Grid Array
(LGA) socket designed for the Intel
®
Pentium
®
4 processor in the 775-land
package. The motherboard supports the Intel
®
Pentium
®
4 processor with
800 MHz Front Side Bus (FSB), 1 MB L2 cache, and core speed of up to
3.6 GHz. The motherboard also supports the Intel
®
Hyper-Threading
Technology and is fully compatible with Intel
®
04B and 04A processors.
See page 1-9 for details.
IntelIntel
IntelIntel
Intel
®®
®®
®
915PL915PL
915PL915PL
915PL
The Intel
®
915PL chipset provides the interface for a processor in the
775-land package with 533/800MHz front side bus (FSB), dual channel
DDR at speeds of up to 400MHz, and PCI Express x16-lane port for
graphics card. The Intel
®
915PL GMCH platform is compliant to the Direct
Media Interface (DMI) and supports the sixth generation I/O Controller Hub
(ICH6).
Dual-channel DDR memory supportDual-channel DDR memory support
Dual-channel DDR memory supportDual-channel DDR memory support
Dual-channel DDR memory support
Employing the Double Data Rate (DDR) memory technology, the
motherboard supports up to 2GB of system memory using DDR400/333
DIMMs. The ultra-fast 400MHz memory bus delivers the required bandwidth
for the latest 3D graphics, multimedia, and Internet applications. See page
1-16 for details.
PCI Express™ interfacePCI Express™ interface
PCI Express™ interfacePCI Express™ interface
PCI Express™ interface
The motherboard fully supports PCI Express, the latest I/O interconnect
technology that speeds up the PCI bus. PCI Express features point-to-point
serial interconnections between devices and allows higher clockspeeds by
carrying data in packets. This high speed interface is software compatible with
existing PCI specifications. See page 1-22 for details.
Serial ATA technologySerial ATA technology
Serial ATA technologySerial ATA technology
Serial ATA technology
The motherboard supports the Serial ATA technology through the Serial ATA
interfaces and the Intel
®
ICH6. The SATA specification allows for thinner,
more flexible cables with lower pin count, reduced voltage requirement, and
up to 150 MB/s data transfer rate.

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1-41-4
1-4 Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introduction
8-channel high definition audio8-channel high definition audio
8-channel high definition audio8-channel high definition audio
8-channel high definition audio
The motherboard supports 8-channel High Definition Audio through the
onboard ALC880 CODEC with 24-bit DAC and an AC97 2.3 compatible
multi-channel audio designed for PC multimedia systems. It also provides a
Jack-Sensing function, S/PDIF out support, interrupt capability and includes
the Realtek
®
proprietary UAJ
®
(Universal Audio Jack) technology. See pages
1-26 and 1-27 for details.
S/PDIF digital sound readyS/PDIF digital sound ready
S/PDIF digital sound readyS/PDIF digital sound ready
S/PDIF digital sound ready
The motherboard supports the S/PDIF Out function through the S/PDIF
interfaces on the rear panel and at midboard. The S/PDIF technology turns
your computer into a high-end entertainment system with digital connectivity
to powerful audio and speaker systems. See pages 1-27 and 1-33 for details.
USB 2.0 technologyUSB 2.0 technology
USB 2.0 technologyUSB 2.0 technology
USB 2.0 technology
The motherboard implements the Universal Serial Bus (USB) 2.0
specification, dramatically increasing the connection speed from the
12 Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is
backward compatible with USB 1.1. See pages 1-24, 1-27, 1-30 and 2-22
for details.
Temperature, fan, and voltage monitoringTemperature, fan, and voltage monitoring
Temperature, fan, and voltage monitoringTemperature, fan, and voltage monitoring
Temperature, fan, and voltage monitoring
The CPU temperature is monitored by the ASIC (integrated in the Winbond
Super I/O) to prevent overheating and damage. The system fan rotations
per minute (RPM) is monitored for timely failure detection. The ASIC
monitors the voltage levels to ensure stable supply of current for critical
components.

ASUS P5GPLASUS P5GPL
ASUS P5GPLASUS P5GPL
ASUS P5GPL 1-51-5
1-51-5
1-5
1.3.31.3.3
1.3.31.3.3
1.3.3 Innovative ASUS featuresInnovative ASUS features
Innovative ASUS featuresInnovative ASUS features
Innovative ASUS features
CrashFree BIOS 2CrashFree BIOS 2
CrashFree BIOS 2CrashFree BIOS 2
CrashFree BIOS 2
This feature allows you to restore the original BIOS data from the support CD
in case when the BIOS codes and data are corrupted. This protection
eliminates the need to buy a replacement ROM chip. See details on page 2-6.
ASUS Q-Fan technologyASUS Q-Fan technology
ASUS Q-Fan technologyASUS Q-Fan technology
ASUS Q-Fan technology
The ASUS Q-Fan technology smartly adjusts the CPU fan speed according
to the system loading to ensure quiet, cool, and efficient operation. See
page 2-32 for details.
ASUS MyLogo™ASUS MyLogo™
ASUS MyLogo™ASUS MyLogo™
ASUS MyLogo™
This new feature present in the motherboard allows you to personalize and
add style to your system with customizable boot logos. See page 2-34.
1.3.21.3.2
1.3.21.3.2
1.3.2 ASUS Proactive featuresASUS Proactive features
ASUS Proactive featuresASUS Proactive features
ASUS Proactive features
AI NOS™ (Non-Delay Overclocking System)AI NOS™ (Non-Delay Overclocking System)
AI NOS™ (Non-Delay Overclocking System)AI NOS™ (Non-Delay Overclocking System)
AI NOS™ (Non-Delay Overclocking System)
The ASUS Non-delay Overclocking System™ (NOS) is a technology that
auto-detects the CPU loading and dynamically overclocks the CPU speed
only when needed. See page 2-19.
AI NET2AI NET2
AI NET2AI NET2
AI NET2
The AI NET2 is a BIOS-based diagnostic tool that detects and reports
Ethernet cable faults and shorts. With this utility, you can easily monitor
the condition of the Ethernet cable(s) connected to the LAN (RJ-45)
port(s). During the bootup process, AI NET2 immediately diagnoses the
LAN cable(s) and reports shorts and faults up to 100 meters at 1 meter
accuracy. See pages 1-26 and 2-21.
ASUS Hyper Path 2 technologyASUS Hyper Path 2 technology
ASUS Hyper Path 2 technologyASUS Hyper Path 2 technology
ASUS Hyper Path 2 technology
The ASUS Hyper Path 2 technology optimizes the full potential of the Intel
®
chipset by shortening the latency time between the CPU and the system
memory. See page 2-25 for details.

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1-61-6
1-6 Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introduction
Onboard LEDOnboard LED
Onboard LEDOnboard LED
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 should 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.
1.4 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.
• Use a grounded wrist strap or touch a safely grounded object or to
a metal object, such as the power supply case, before handling
components 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, ensureBefore you install or remove any component, ensure
Before you install or remove any component, ensureBefore you install or remove any component, ensure
Before you install or remove any component, ensure
that the ATX power supply is switched off or thethat the ATX power supply is switched off or the
that the ATX power supply is switched off or thethat the ATX power supply is switched off or the
that the ATX power supply is switched off or the
power cord is detached from the power supply.power cord is detached from the power supply.
power cord is detached from the power supply.power cord is detached from the power supply.
power cord is detached from the power supply. Failure
to do so may cause severe damage to the motherboard, peripherals,
and/or components.
P5GPL
P5GPL Onboard LED
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ASUS P5GPL 1-71-7
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1.5 Motherboard overview
Before you install the motherboard, study the configuration of your chassis
to ensure that the motherboard fits into it.
Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so can cause you physical injury and damage
motherboard components.
Do not overtighten the screws! Doing so can damage the motherboard.
1.5.11.5.1
1.5.11.5.1
1.5.1 Placement directionPlacement direction
Placement directionPlacement direction
Placement direction
When installing the motherboard, make sure that you place it into the
chassis in the correct orientation. The edge with external ports goes to the
rear part of the chassis as indicated in the image below.
1.5.21.5.2
1.5.21.5.2
1.5.2 Screw holesScrew holes
Screw holesScrew holes
Screw holes
Place nine (9) screws into the holes indicated by circles to secure the
motherboard to the chassis.
Place this side towardsPlace this side towards
Place this side towardsPlace this side towards
Place this side towards
the rear of the chassisthe rear of the chassis
the rear of the chassisthe rear of the chassis
the rear of the chassis
P5GPL

1-81-8
1-81-8
1-8 Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introductionChapter 1: Product introduction
Chapter 1: Product introduction
1.5.31.5.3
1.5.31.5.3
1.5.3 Motherboard layoutMotherboard layout
Motherboard layoutMotherboard layout
Motherboard layout
P5GPL
CR2032 3V
Lithium Cell
CMOS Power
CD
Super
I/O
Intel FWH
4Mb
ATX12V
FLOPPY
AAFP
DDR DIMM_A1 (64 bit,184-pin module)
KBPWR
SB_PWR
USBPW34
USBPW12
24.5cm (9.6in)
30.5cm (12.0in)
PANEL
CHASSIS
USB78
USB56
USBPW56
USBPW78 CLRTC
SATA1
CHA_FAN
PCI1 Intel®
ICH6
DDR DIMM_A2 (64 bit,184-pin module)
DDR DIMM_B1 (64 bit,184-pin module)
DDR DIMM_B2 (64 bit,184-pin module)
PWR_FAN CPU_FAN
PRI_IDE
ALC880 SATA3
SATA2 SATA4
PCI2
PCI3
SPDIF_OUT
Marvell
88E8053
LGA775
PS/2KBMS
T: Mouse
B: Keyboard
Below:Mic In
Center:Line Out
Top:Line In
PARALLEL PORT
COM1
SPDIF_O
Below:Bass
Center:
Side surround L/R
Top:
Back surround L/R
F_USB12
LAN_USB34
PCIEX1_1
PCIEX1_2
PCIEX1_3
PCIEX16
EATXPWR
Intel
915PL
R