Asus P5E3 Pro User Manual

P5E3 PRO

Motherboard

E4777

First Edition V1
June 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, 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.

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 identication or explanation and to the
owners’ benet, without intent to infringe.

ii

Contents

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

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

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

P5E3 PRO specications summary .......................................................... ix

Chapter 1 Product introduction

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

1.2 Package contents .........................................................................

1.3 Special features ............................................................................

1.3.1 Product highlights ...........................................................

1.3.2 Innovative ASUS features ...............................................

1.4 Before you proceed .....................................................................

1.5 Motherboard overview .................................................................

1.5.1 Placement direction ........................................................

1.5.2 Screw holes ....................................................................

1.5.3 Motherboard layout .........................................................

1.5.4 Layout contents ...............................................................

1.6 Central Processing Unit (CPU) ...................................................

1.6.1 Installing the CPU ...........................................................

1.6.2 Installing the CPU heatsink and fan ..............................

1.6.3 Uninstalling the CPU heatsink and fan .........................

1.7 System memory .........................................................................

1.7.1 Overview .......................................................................

1.7.2 Memory congurations ..................................................

1.7.3 Installing a DIMM ..........................................................

1.7.4 Removing a DIMM ........................................................

1.8 Expansion slots ..........................................................................

1.8.1 Installing an expansion card .........................................

1.8.2 Conguring an expansion card .....................................

1.8.3 PCI slots ........................................................................

1.8.4 PCI Express x1 slots .....................................................

1.8.5 PCI Express x16 slot .....................................................

1.9 Jumpers ......................................................................................

1-1

1-1

1-1

1-3

1-6

1-7

1-7

1-7

1-8

1-8

1-9

1-9

1-12

1-13

1-14

1-14

1-15

1-18

1-18

1-19

1-19

1-19

1-19

1-19

1-19

1-20

iii

Contents

1.10 Connectors ................................................................................. 1-21

1.10.1 Rear panel connectors ..................................................

1.10.2 Internal connectors .......................................................

1.11 Software support ........................................................................

1.11.1 Installing an operating system ......................................

1.11.2 Support DVD information ..............................................

Chapter 2 BIOS information

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

2.1.1 ASUS Update utility ........................................................

2.1.2 ASUS EZ Flash 2 utility ...................................................

2.1.3 ASUS CrashFree BIOS 3 utility ......................................

2.2 BIOS setup program ....................................................................

2.2.1 BIOS menu screen ..........................................................

2.2.2 Menu bar .........................................................................

2.2.3 Navigation keys ...............................................................

2.2.4 Menu items .....................................................................

2.2.5 Submenu items ...............................................................

2.2.6 Conguration elds .........................................................

2.2.7 Pop-up window ...............................................................

2.2.8 Scroll bar .........................................................................

2.2.9 General help ...................................................................

2.3 Main menu ....................................................................................

2.3.1 System Time ...................................................................

2.3.2 System Date ...................................................................

2.3.3 Language ........................................................................

2.3.4 SATA 1-6 .........................................................................

2.3.5 SATA Conguration .........................................................

2.3.6 System Information .........................................................

2.4 Ai Tweaker menu ..........................................................................

2.5 Advanced menu .........................................................................

2.5.1 CPU Conguration ........................................................

2.5.2 Chipset ..........................................................................

2.5.3 Onboard Devices Conguration ....................................

2.5.4 USB Conguration ........................................................

1-21

1-22

1-28

1-28

1-28

2-1

2-2

2-3

2-4

2-5

2-5

2-6

2-6

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2-7

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2-7

2-8

2-9

2-9

2-14

2-14

2-15

2-15

2-16

iv

Contents

2.5.5 PCI PnP ........................................................................ 2-17

2.6 Power menu ................................................................................

2.6.1 Suspend Mode ..............................................................

2.6.2 Repost Video on S3 Resume ........................................

2.6.3 ACPI 2.0 Support ..........................................................

2.6.4 ACPI APIC Support .......................................................

2.6.5 APM Conguration ........................................................

2.6.5 Hardware Monitor .........................................................

2.7 Boot menu ..................................................................................

2.7.1 Boot Device Priority ......................................................

2.7.2 Boot Settings Conguration ..........................................

2.7.3 Security .........................................................................

2.8 Tools menu .................................................................................

2.8.1 ASUS EZ Flash 2 ..........................................................

2.8.2 Express Gate ................................................................

2.8.3 ASUS O.C. Prole .........................................................

2.8.4 AI NET 2

2.9 Exit menu ....................................................................................

........................................................................ 2-23

2-18

2-18

2-18

2-18

2-18

2-18

2-19

2-20

2-20

2-20

2-21

2-22

2-22

2-23

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2-24

v

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.

vi

Safety information

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 adpater 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 x it by yourself. Contact a qualied service

technician or your retailer.

•

The optical S/PDIF is an optional component (may or may not be included in your

motherboard) and is dened as a CLASS 1 LASER PRODUCT.

INVISIBLE LASER RADIATION, AVOID EXPOSURE TO BEAM.

•

Never dispose of the battery in re. it could explode and release harmful substances into

the environment.

•

Never dispose of the battery with your regular household waste. Take it to a hazardous

material collection point.

•

Never replace the battery with an incorrect battery type.

•

RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.

•

DISPOSE OF USED BATTERIES ACCORDING TO THE ABOVE BATTERY-RELATED
INSTRUCTIONS.

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.

This motherboard should only be used in environments with ambient temperatures between

5℃ (41℉) and 40℃ (104℉).

•

Place the product on a stable surface.

•

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

technician or your retailer.

vii

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.

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.

Conventions used in this guide

To make sure 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.

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>

viii

P5E3 PRO specications summary

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

Chipset Northbridge: Intel® X48

System bus 1600/1333/1066/800MHz
Memory Dual-channel memory architecture

Expansion slots 2 x PCIe x16 slots (both @x16 mode) supports CrossFireX

Storage Southbridge

LAN Marvell88E8056 PCIe Gigabit LAN Controller featuring AI NET2

Audio Realtek ALC 1200, Audio 8-channel CODEC

USB 12 x USB 2.0/1.1 ports (6 ports at mid-board, 6-ports at back

AI Lifestyle Unique
Features

Core™2 Duo / Pentium® dual-core /Celeron® dual-core /
Celeron® processors
Supports Intel® 45nm multi-core CPU
Support Enhanced Intel SpeedStep Technology (EIST)

(Refer to www.asus.com for Intel® CPU support list)

Southbridge: Intel® ICH9R with Intel® Extreme Memory Proles
Technology

- 4 x 240-pin DIMM sockets support unbuffered non-ECC
DDR3 1600/1333/1066/800MHz memory modules

- Supports up to 8GB system memory
* When you install a total memory of 4GB capacity 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 OS.

**Refer to www.asus.com or this manual for the Memory QVL

(Qualied Vendors Lists).

Technology
2 x PCIe x1 slots
2 x PCI slots

- 6 x SATA 3.0 Gb/s ports

- Intel Matrix Storage Technology supports RAID 0,1,5 and 10
Marvell 88SE6111

- 1 x UltraDMA 133/100/66 for up to 2 PATA devices

- Supports Jack-detect, Multi-streaming

- Coaxial/Optical S/PDIF output

panel)

ASUS Power Saving Solution

- ASUS EPU (Energy Processing Unit)

- ASUS 3rd Generation 8-phase Power
ASUS Quiet Thermal Solution

- Efcient Heat-pipe and Heat-sink module

- ASUS Q-Fan
ASUS EZ DIY

- ASUS O.C. Prole

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 2

(continued on the next page)

ix

P5E3 PRO specications summary

Other Features ASUS MyLogo 2

ASUS Exclusive
Overclocking Features

Rear panel ports 1 x PS/2 keyboard port

Internal connectors 1 x High Denition analog front panel audio connector

BIOS features 8 Mb Flash ROM, AMI BIOS, PnP, DMI v2.0, WfM2.0, SMBIOS

Manageability WOL 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE, RPL

Accessories 1 x UltraDMA 133/100/66 cable

Support DVD Drivers

Form factor ATX form factor: 12 in x 9.6 in (30.5 cm x 24.4cm)

Multi-language BIOS

Precision Tweaker 2:

- FSB tuning from 200MHz up to 800MHz at 1MHz increment

- Memory tuning from 800MHz up to 3200MHz

- ASUS C.P.R. (CPU Parameter Recall)

1 x Coaxial/Optical S/PDIF Out port
1 x LAN (RJ-45) port
6 x USB 2.0/1.1 ports
8-channel audio I/O ports

1 x COM connector
1 x System panel connector
3 x USB 2.0 connectors support additional 6 USB 2.0 ports
1 x CPU/ 1 x Chassis/ 1 x Power fan connectors
1 x CD audio-in connector
1 x IDE connector
1 x 24-pin EPS Power connector
1 x 4-pin ATX 12V Power connector
6 x SATA connectors

v2.5, ACPI v2 0a, ASUS EZ Flash 2, ASUS CrashFree BIOS 3

2 x Serial ATA cables
1 x I/O shield
User Manual

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

*Specications are subject to change without notice.

x

Chapter 1

Product introduction

1.1 Welcome!

Thank you for buying an ASUS® P5E3 PRO motherboard!
The motherboard delivers a host of new features and latest technologies, making it another

standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the items in

your package with the list below.

1.2 Package contents

Check your motherboard package for the following items.

Motherboard ASUS P5E3 PRO motherboard

Cables 2 x Serial ATA cables

1 x Ultra DMA 133/100/66 cable

Accessories 1 x I/O shield

Application DVD ASUS motherboard support DVD

Documentation User Manual

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

1.3 Special features

1.3.1 Product highlights

Intel® Core™2 Extreme / Core™2 Quad / Core™2 Duo CPU

ASUS P5E3 PRO 1-1

support

This motherboard supports Intel® LGA775 Core™ 2 Extreme / Core™
2 Quad/ Core™ 2 Duo processors, which are excellent for multitasking,
multimedia, and enthusiastic gamers with 1600 / 1333/ 1066/ 800

MHz FSB. This motherboard also supports Intel® CPUs in the 45nm

manufacturing process.

Intel® X48 Chipset

The Intel® X48 Express Chipset is the latest chipset designed to support
dual-channel DDR3 1333/1066/800 architecture, 1600/1333/1066/800
FSB (Front Side Bus), dual PCI Express x16 graphics, and multi-core
CPUs. With the specially included Intel® Fast Memory Access technology,

available memory bandwidth usage is optimized and memory access

latency is reduced.

Dual channel DDR3 1600/1333/1066/800 support

This motherboard supports DDR3 memory that features data transfer

rates of 1600/1333/1066/800 MHz providing great performance for 3D

graphics and other memory-demanding applications.

ATI CrossFire™X Technology

ATI’s CrossFire™X boosts image quality along with rendering speed,
eliminating the need to scale down screen resolution to get high quality

images. CrossFire™X allows higher antialiasing, anisotropic ltering,
shading, and texture settings. Adjust your display congurations,

experiment with the advanced 3D settings, and check the effects with a
real-time 3D-rendered previews within ATI Catalyst™ Control Center.

PCIe 2.0

This motherboard supports the latest PCIe 2.0 device for twice the
current speed and bandwidth. This enhances system performance while
still providing backward compatibility to PCIe 1.0 devices.

Serial ATA 3Gb/s technology

This motherboard supports hard drives based on the Serial ATA (SATA)

3Gb/s storage specications, delivering enhanced scalability and

doubling the bus bandwidth for high-speed data saving and retrieval.

S/PDIF digital sound ready

This motherboard provides convenient connectivity to external home
theater audio systems via the S/PDIF-out (SONY-PHILIPS Digital
Interface) jack. It allows digital audio transfer and keeps the best signal
quality.

High Denition Audio

Enjoy high-end sound quality on your PC! The onboard 8-channel HD

audio (High Denition Audio, previously codenamed Azalia) CODEC
enables high-quality 192KHz/24-bit audio output, jack-sensing feature,

retasking functions, and multi-streaming technology that simultaneously
sends different audio streams to different destinations. You can now talk
to your partners on the headphones while playing multi-channel network
games.

1-2 Chapter 1: Product introduction

1.3.2 Innovative ASUS features

ASUS MyLogo2™

Turn your favorite photos into 256-color boot logos to personalize your

system.

ASUS CrashFree BIOS 3

ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to

restore a corrupted BIOS le using the bundled support DVD or USB
ash disk that contains the latest BIOS le.

ASUS Q-FAN

ASUS Q-FAN technology intelligently and automatically adjusts CPU/
Chassis fan speed according to system load and temperature, enabling
users to work in distraction-free environment with minimal noise.

ASUS EZ Flash 2

ASUS EZ Flash 2 is a utility that allows you to update the BIOS without
using an OS-based utility.

ASUS EPU

The ASUS EPU (Energy Processing Unit) provides total system power
management by detecting current PC loading and intelligently moderating
power in real-time. It automatically provides the most appropriate power
usage to save power and money!

ASUS 3rd Generation 8-Phase Power Design

The ASUS 3rd Generation 8-Phase Power Design provides highly

efcient operation to generate less heat (at least 18°C (32.4°F)) than

other conventional power solutions. It reduces input ripple current and
output ripple voltage, which keeps CPU and power module from suffering
the risk of high power stress. It has the advantages of quick transient

response and stability, especially benecial when CPU requires more

current immediately under heavy loading or overclocking mode.

DO NOT uninstall the heat-pipe by yourself. Doing so may bend the tubing and affect
the heat dissipation performance.

Heat-pipe

The Heat Pipe design effectively directs the heat generated by the
chipsets to the heatsink near the back IO ports, where it can be carried

away by existing airow from CPU fan or bundled optional fan. The

purpose of the innovative heat pipe design on this motherboard is that
the groundbreaking fanless design does not have lifetime problems as
a chipset fan does. Furthermore, it provides options for users to install

side-ow fan or passive cooler. The Heat Pipe design is the most reliable

fanless thermal solution to date.

ASUS P5E3 PRO 1-3

Express Gate

Express Gate is a unique OS built into the motheroard. Five seconds
after bootup, you can instantly surf the Internet without entering the
Windows® OS.

• Express Gate complies with the OpenGL standard. Refer to http://support.asus.com
for Express Gate source codes.

• ASUS Express Gate supports le uploading from SATA HDDs, ODDs, and USB
drives. It supports le downloading to USB devices only.

• The actual boot time is subject to hardware conguration and product models.

ASUS AI NET2

ASUS AI NET2 remotely detects the cable connection immediately after
turning on the system, and any faulty cable connections are reported
back up to 100 meters at 1 meter accuracy.

ASUS Multi-language BIOS

The multi-language BIOS allows you to select the language of your

choice from the available options. The localized BIOS setup menu helps
you congure your system easier and faster.

ASUS AI Direct Link

AI Direct Link can easily and efciently transfer large amounts of data

via the network cable - saving up to 70% of the total time taken. With

AI Direct Link, it becomes easy to backup or share large data les like

movies or other media content.

ASUS O.C. Prole

The motherboard features the ASUS O.C. Prole that allows users to

conveniently store or load multiple BIOS settings. The BIOS settings can

be stored in the CMOS or a separate le, giving users freedom to share

and distribute their favorite settings.

Precision Tweaker 2

Allows the user to adjust the NB Voltage, FSB termination Voltage, CPU

PLL Voltage and the DRAM Voltage in 0.02v steps to netune voltages to
achieve the most precise setting for the ultimate customized overclocking
conguration.

1-4 Chapter 1: Product introduction

Noise Filter

This feature detects repetitive and stationary noises (non-voice signals)
like computer fans, air conditioners, and other background noises then
eliminates it in the incoming audio stream while recording.

C.P.R. (CPU Parameter Recall)

The BIOS C.P.R. feature automatically restores the CPU default settings
when the system hangs due to overclocking failure. C.P.R. eliminates the
need to open the system chassis and clear the RTC data. Simply shut
down and reboot the system, and the BIOS automatically restores the
CPU parameters to their default settings.

Green ASUS

This motherboard and its packaging comply with the European Union’s

Restriction on the use of Hazardous Substances (RoHS). This is in line

with the ASUS vision of creating environment-friendly and recyclable

products/packaging to safeguard consumers’ health while minimizing the

impact on the environment.

ASUS P5E3 PRO 1-5

1.4 Before you proceed

SB_PWR

ON

Standy Power Powered Off

OFF

P5E3 PRO

P5E3 PRO Onboard LED

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.

1-6 Chapter 1: Product introduction

1.5 Motherboard overview

P5E3 PRO

Before you install the motherboard, study the conguration of your chassis to ensure that the
motherboard ts into it.

Ensure that you unplug the power cord before installing or removing the motherboard.
Failure to do so can cause you physical injury and damage motherboard components.

1.5.1 Placement direction

When installing the motherboard, ensure 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.

1.5.2 Screw holes

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.

Place this side towards
the rear of the chassis

ASUS P5E3 PRO 1-7

1.5.3 Motherboard layout

P5E3 PRO

PCIEX16_1

PCIEX1_1

PCIEX1_2

PCIEX16_2

PCI2

PCI1

USB78USB910

USB1112

AAFP

ICS

9LRS954A4GLF

ATX12V

CPU_FAN

PWR_FAN

CHA_FAN

Intel

®

X48

Lithium Cell

CMOS Power

ALC
1200

8Mb
BIOS

LGA775

Intel

®

ICH9R

DDR3 DIMM_A1 (64bit, 240-pin module)

DDR3 DIMM_A2 (64bit, 240-pin module)

DDR3 DIMM_B1 (64bit, 240-pin module)

DDR3 DIMM_B2 (64bit, 240-pin module)

SATA2

SATA1

SATA4

SATA3

SATA6

SATA5

CLRTC

SB_PWR

AUDIO

KB_USB56

LAN_USB12

USB34

SPDIF_
O12

EATXPWR

30.5cm(12in)

24.4cm(9.6in)

Super

I/O

EPU

COM1

PRI_IDE

CD

Marvell

®

88E8056

PANEL

Marvell

®

88SE6111

1 2 3 2 4

1

5

7

8

6

11 9103121311

1.5.4 Layout contents

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

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

2 CPU/ChassisPower fan connectors

(4-pin CPU_FAN, 3-pin CHA_FAN, 3-pin
PWR_FAN))

3. LGA775 CPU socket 1-9 10. Clear RTC RAM (3-pin CLRTC) 1-20

4. DDR3 DIMM slots 1-14 11. USB connectors (10-1 pin USB78, USB910,

5. COM connector 1-23 12. Optical drive audio connector (4-pin CD) 1-24

6. IDE connector (40-1 pin PRI_EIDE) 1-25 13. Front panel audio connector (10-1 pin AAFP) 1-27

7. Serial ATA connectors [red]

1-8 Chapter 1: Product introduction

(7-pin SATA1-6)

1-23 8. Onboard LED 1-5

1-22 9. System panel connector (20-8 pin PANEL) 1-26

USB1112)

1-24

1-27

1.6 Central Processing Unit (CPU)

P5E3 PRO CPU socket 775

P5E3 PRO

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

• Unplug all power cables before installing the CPU.

• Connect the chassis fan cable to the CHA_FAN connector to ensure system stability.

• 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.

1.6.1 Installing the CPU

To install a CPU:

1. Locate the CPU socket on the motherboard.

Before installing the CPU, ensure that the cam box is facing towards you and the load lever
is on your left.

ASUS P5E3 PRO 1-9

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

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

Retention tab

A

B

Load lever

3. Lift the load lever in the direction of the

arrow to a 135º angle.

4. Lift the load plate with your thumb and

forenger to a 100º angle (4A), then

push the PnP cap from the load plate
window to remove (4B).

5. Position the CPU over the socket,
ensuring that the gold triangle is on the

bottom-left corner of the socket then t

the socket alignment key into the CPU
notch.

PnP cap

Load plate

4B

4A

3

CPU notch

Gold
triangle
mark

Alignment key

1-10 Chapter 1: Product introduction

6. Apply some Thermal Interface Material
to the exposed area of the CPU that the
heatsink will be in contact with, ensuring
that it is spread in an even thin layer.

Some heatsinks come with
pre-applied thermal paste. If so, skip
this step.

DO NOT eat the Thermal Interface Material. If it gets into your eyes or touches your skin,
ensure that you wash it off immediately, and seek professional medical help.

To prevent contaminating the paste, DO NOT spread the paste with your nger directly.

7. Close the load plate (A), then push
the load lever (B) until it snaps into the
retention tab.

A

B

ASUS P5E3 PRO 1-11

1.6.2 Installing the CPU heatsink and fan

The Intel® LGA775 processor requires a specially designed heatsink and fan assembly to
ensure optimum thermal condition and performance.

•

When you buy a boxed Intel® processor, the package includes the CPU fan and
heatsink assembly. If you buy a CPU separately, ensure that you use only Intel®-certied
multi-directional heatsink and fan.

• Your Intel

• If you purchased a separate CPU heatsink and fan assembly, ensure that you have

Ensure that you have installed the motherboard to the chassis before you install the CPU
fan and heatsink assembly.

®

LGA775 heatsink and fan assembly comes in a push-pin design and requires

no tool to install.

properly applied Thermal Interface Material to the CPU heatsink or CPU before you
install the heatsink and fan assembly.

To install the CPU heatsink and fan:

1. Place the heatsink on top of the installed
CPU, ensuring that the four fasteners match
the holes on the motherboard.

Orient the heatsink and fan assembly
such that the CPU fan cable is closest to
the CPU fan connector.

2. Push down two fasteners at a time in a

diagonal sequence to secure the heatsink
and fan assembly in place.

A

B

The type of CPU heatsink and fan assembly may differ, but the installation steps and
functions should remain the same. The illustration above is for reference only.

B

A

A

B

B

A

1

1

1-12 Chapter 1: Product introduction

3. Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.

CPU_FAN

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

P5E3 PRO

P5E3 PRO CPU fan connector

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

1.6.3 Uninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan:

1. Disconnect the CPU fan cable from the connector on the motherboard.

2. Rotate each fastener counterclockwise.

3. Pull up two fasteners at a time in a diagonal sequence to disengage the heatsink and
fan assembly from the motherboard.

A

A

B

B

B

B

ASUS P5E3 PRO 1-13

A

A

P5E3 PRO 240-pin DDR3 DIMM sockets

P5E3 PRO

DIMM_A1

DIMM_A2

DIMM_B1

DIMM_B2

4. Carefully remove the heatsink and fan
assembly from the motherboard.

5. Rotate each fastener clockwise to ensure
correct orientation when reinstalling.

1.7 System memory

1.7.1 Overview

The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules

(DIMM) sockets. The gure illustrates the location of the DDR3 DIMM sockets:

Channel Sockets

Channel A DIMM_A1 and DIMM_A2

Channel B DIMM_B1 and DIMM_B2

1-14 Chapter 1: Product introduction

1.7.2 Memory congurations

You may install 512MB, 1GB, and 2GB 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.

• For dual-channel conguration, you can:

- install two identical DIMMs in DIMM_A1 and DIMM_B1; or

- install four identical DIMMs in all four slots; or

- install one identical DIMM pair in DIMM_A1 and DIMM_B1 (black slots) and
another identical DIMM pair in DIMM_A2 and DIMM_B2 (orange slots).

• 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
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 any of the
following:

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

- 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.

• This motherboard supports up to 8GB on Windows® XP Professional x64 and Windows®
Vista x64 editions. You may install a maximum of 2GB DIMMs on each slot.

• The default memory operation frequency is dependent on its Serial Presence Detect
(SPD), which is the standard way of accessing information from a memory module.
Under the default state, some memory modules for overclocking may operate at a lower
frequency than the vendor-marked value.

• For system stability, use a more efcient cooling system to support a full memory load (4

DIMMs) or overclocking conditions.

®

OS, when you install 4GB

®

OS.

ASUS P5E3 PRO 1-15

P5E3 PRO Motherboard Qualied Vendors Lists (QVL)

DDR3-1600 MHz capability

Vendor Part No. Size

A-Data AD31600X001GMU 2048MB(Kit of 2) SS N/A Heat-Sink Package 7-7-7-20 1.75-1.85V • •

A-Data AD31600E002GU 2048MB DS N/A Heat-Sink Package 7-7-7-20 1.75-1.85V

A-Data AD31600X002GMU 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-20 1.75-1.85V • •

Corsair CM3X1G1600C9DHX 2048MB(Kit of 2) SS N/A Heat-Sink Package 9-9-9-24 1.8V • •

Corsair CM3X2048-1600C9DHK 2048MB DS N/A Heat-Sink Package •

Corsair CM3X2G1600C9DHX 2048MB DS N/A Heat-Sink Package • •

Crucial BL12864BA1608.8SFB(XMP) 3072MB(Kit of 3) SS N/A Heat-Sink Package 8-8-8-24 1.8V • •

Crucial BL12864BE2009.8SFB3(EPP) 3072MB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-28 2.0V • •

Crucial BL25664TB1608.K16SF(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-24 • •

Crucial BL25664TG1608.K16SF(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-24 • •

Crucial BL25664TR1608.K16SF(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-24 • •

G.SKILL F3-12800CL9D-2GBNQ 2048MB(Kit of 2) SS N/A Heat-Sink Package 9-9-9-24 1.5V~1.6V • •

G.SKILL F3-12800CL8T-6GBHK 2048MB DS N/A Heat-Sink Package 8-8-8-21 1.6~1.65 • •

G.SKILL F3-12800CL9T-6GBNQ 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24 1.5V~1.6V • •

GEIL GV34GB1600C8DC 2048MB DS N/A Heat-Sink Package 8-8-8-28 1.6V

kingmax FLGD45F-B8KG9 1024MB SS kingmax KFB8FNGXF-

kingmax FLGE85F-B8KG9 2048MB DS kingmax KFB8FNGXF-

Kingston KHX12800D3LLK3/3GX(XMP) 3072MB(kit of 3) SS N/A Heat-Sink Package 8-8-8-24 1.65V • •

Kingston KHX12800D3K2/4G 4096MB(kit of 2) DS N/A Heat-Sink Package 9-9-9-27 1.5V • •

Kingston KHX12800D3LLK3/6GX(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-24 1.65V • •

OCZ OCZ3P1600EB4GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-6-24 1.9V •

OCZ OCZ3SOU16004GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 8-8-8-24 1.9V • •

OCZ OCZ3X16004GK(EPP) 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-24 1.9V • •

Kingtiger KTG2G1600PG3 2048MB DS N/A Heat-Sink Package • •

Mushkin 996657 4096MB(Kit of 2 ) DS N/A Heat-Sink Package 7-7-7-20 1.95V • •

Mushkin 998659 6144MB(Kit of 3 ) DS N/A Heat-Sink Package 9-9-9-24 1.5~1.6V • •

Mushkin 998659 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24 • •

PQI MFADR401PA0102 2048MB DS Samsung SEC 825 HCFO

SUPER-

WA160UX6G9 6144MB(Kit of 3 ) DS N/A Heat-Sink Package 9 • •

TALENT

SS/DSChip

Brand

Chip NO.

ANX-12A

ANX-12A

K4B1G0846D

“Timing
Dimm(Bios)”

Voltage

DIMM support

A* B*

• •

• •

• •

DDR3-1333 MHz

Vendor Part No. Size

CORSAIR CM3X1024-1333C9DHX 1024MB DS N/A Heat-Sink Package 9 • •

KINGMAX FLFD45F-B8EE9 1024MB SS ELPIDA J1108BASE-DJ-E N/A • • •

Kingston KVR1333D3N8/1G 1024MB DS QIMONDA IDSH51-03A1F1C-13G N/A •

MICRON MT8JTF12864AY-1G4BYES 1024MB SS MICRON Z9HWR 9 • • •

MICRON MT16JTF25664AY-1G4BYES 2048MB DS MICRON Z9HWR 9 • • •

OCZ OCZ3RPX1333EB2GK 1024MB SS N/A Heat-Sink Package 6-5-5 • • •

Qimonda IMSH1GU03A1F1C-13H 1024MB SS N/A IDSH1G-03A1F1C-13H N/A • •

Qimonda IMSH2GU13A1F1C-13H 2048MB DS N/A IDSH1G-03A1F1C-13H N/A • • •

SAMSUNG M378B2873DZ1-CH9 1024MB SS SAMSUNG K4B1G0846D 9 • • •

SAMSUNG M391B2873DZ1-CH9 1024MB SS SAMSUNG K4B1G0846D(ECC) 9 • • •

SS/DSChip

Brand

Chip No. CL

1-16 Chapter 1: Product introduction

DIMM support

A* B* C*

DDR3-1067 MHz capability

Vendor Part No. Size

Qimonda IMSH51U03A1F1C-10F 512MB SS QIMONDA IDSH51-03A1F1C-10F N/A • • •

Qimonda IMSH1GU13A1F1C-10F 1024MB DS QIMONDA IDSH51-03A1F1C-10F N/A • •

ELPIDA EBJ51UD8BAFA-AG-E 512MB SS ELPIDA J5308BASE-AC-E 8 • • •

ELPIDA EBJ11UD8BAFA-AG-E 1024MB DS ELPIDA J5308BASE-AC-E 8 • •

NANYA NT512C64B88A0NY-BF 512MB SS NANYA NT5CB64M8AN-BE N/A • • •

MICRON MT8JTF12864AY-1G1BZES 1024MB SS MICRON D9GTR 7 • •

SAMSUNG M378B2873CZ0-CF8 1024MB SS SAMSUNG K4B1G0846C-ZCF8 7-7-7 • •

SAMSUNG M378B2873CZ0-CG8 1024MB SS SAMSUNG K4B1G0846C-ZCG8 8 • •

SAMSUNG M391B2873CZ0-CF8 1024MB SS SAMSUNG K4B1G0846C-ZCF8 7 • •

Kingston KVR1066D3N7/512 512MB SS QIMONDA IDSH51-03A1F1C-10F N/A • • •

Kingston KVR1066D3N7/512 512MB SS ELPIDA J5308BASE-AC-E 7 • • •

CORSAIR CM3X1024-1066C7 1024MB DS N/A Heat-Sink Package 7 • •

Hynix HYMT112U64ZNF8-G7 1024MB SS HYNIX HY5TQ1G831ZNFP-G7 7 • •

SS/

Chip Brand Chip No. CL

DS

DIMM support

A* B* C*

DDR3-800 MHz capability

Vendor Part No. Size

ELPIDA EBJ51UD8BAFA-8C-E 512MB SS ELPIDA J5308BASE-AC-E 6 • • •

ELPIDA EBJ11UD8BAFA-8C-E 1024MB DS ELPIDA J5308BASE-AC-E 6 • •

NANYA NT512C64B88A0NY-25D 512MB SS NANYA NT5CB64M8AN-25D N/A • • •

NANYA NT1GC64B8HA0NY-25D 1024MB DS NANYA NT5CB64M8AN-25D N/A • •

Qimonda IMSH1GU13A1F1C-08E 1024MB DS QIMONDA IDSH51-03A1F1C-08E N/A • •

Qimonda IMSH51U03A1F1C-08D 512MB SS Qimonda IDSH51-03A1F1C-08D N/A • • •

Qimonda IMSH51U03A1F1C-08E 512MB SS Qimonda IDSH51-03A1F1C-08E N/A • • •

Hynix HYMT112U64ZNF8-S6 1024MB SS Hynix HY5TQ1G831ZNF-S6 N/A • •

SS/

Chip Brand Chip No. CL

DS

DIMM support

A* B* C*

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

• A*: Supports one module inserted into any slot as Single-channel memory conguration.

• B*: Supports one pair of modules inserted into either the orange or black slots as one

pair of Dual-channel memory conguration.

• C*: Supports four modules inserted into both the orange and black slots as two pairs of

Dual-channel memory conguration.

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

ASUS P5E3 PRO 1-17

1.7.3 Installing a DIMM

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

To install a DIMM:

1. Press the retaining clips outward to
unlock a DDR3 DIMM socket.

2. Align a DIMM on the socket such that
the notch on the DIMM matches the
break on the socket.

Unlocked retaining clip

A DDR3 DIMM is keyed with a notch so that it ts in only one direction. DO NOT force a

DIMM into a socket to avoid damaging the DIMM.

2

DDR3 DIMM notch

1

1

3. Firmly insert the DIMM into the socket
until the retaining clips snap back in place

3

and the DIMM is properly seated.

Locked Retaining Clip

1.7.4 Removing a DIMM

To remove a DIMM:

1. Simultaneously press the retaining clips
outward to unlock the DIMM.

2

Support the DIMM lightly with

your ngers when pressing the

retaining clips. The DIMM might

get damaged when it ips out with

extra force.

2. Remove the DIMM from the socket.

1-18 Chapter 1: Product introduction

1

DDR3 DIMM notch

1

1.8 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.

1.8.1 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.

1.8.2 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.

1.8.3 PCI slots

The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that

comply with PCI specications.

1.8.4 PCI Express x1 slots

This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that

comply with the PCI Express specications.

1.8.5 PCI Express x16 slot

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

Express specications.

ASUS P5E3 PRO 1-19

1.9 Jumpers

P5E3 PRO

P5E3 PRO 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
data.

<Del> key during the boot process and enter BIOS setup to re-enter

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 the CMOS clearance, 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.

• Due to the chipset limitation, AC power off is required before you use the C.P.R.
function. You must turn off and on the power supply or unplug and plug the power cord
before rebooting the system.

1-20 Chapter 1: Product introduction

1.10 Connectors

3

11 10

1 2

13

4 5 6 7

89

12

1.10.1 Rear panel connectors

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

2.

Coaxial S/PDIF Out port. This port connects an external audio output device via a
coaxial S/PDIF cable.

3. LAN (RJ-45) port.

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

LAN port LED indications

ACT/LINK LED SPEED LED

Status Description Status Description

OFF No link OFF 10 Mbps connection

ORANGE Linked ORANGE 100 Mbps connection

BLINKING Data activity GREEN 1 Gbps connection

4. Center / Subwoofer port (orange). This port connects the center/subwoofer speakers.

5. Rear Speaker Out port (black). This port connects the rear speakers in a 4-channel,

6-channel, or 8-channel audio conguration.

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

sources.

7. Line Out port (lime)

channel, and 8-channel congurations, the function of this port becomes Front Speaker

Out.

8. Microphone port (pink)

9. Side Speaker Out port (gray). This port connects the side speaker in an 8-channel

audio conguration.

This port allows Gigabit connection to a Local Area Network (LAN)

LED

LAN port

SPEED

LED

ACT/LINK

. This port connects a headphone or a speaker. In 4-channel, 6-

. 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, 6, or 8-channel conguration.

ASUS P5E3 PRO 1-21

Audio 2, 4, 6, or 8-channel conguration

P5E3 PRO fan connectors

P5E3 PRO

Rotation

+12V
GND

PWR_FAN

GND
+12V
Rotation

CHA_FAN

CPU_FAN

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

Port Headset 2-channel 4-channel 6-channel 8-channel

Light Blue Line In Line in Line in Line in

Lime Line Out Front Speaker Out Front Speaker Out Front Speaker Out

Pink Mic In Mic In Mic in Mic in

Orange - - Center/Subwoofer Center/Subwoofer

Black - Rear Speaker Out Rear Speaker Out Rear Speaker Out

Gray - - - Side Speaker Out

10. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are

available for connecting USB 2.0 devices.

11. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are

available for connecting USB 2.0 devices.

12. Optical S/PDIF Out port. This port connects an external audio output device via an

optical S/PDIF cable.

13. USB 2.0 ports 5 and 6. These two 4-pin Universal Serial Bus (USB) ports are

available for connecting USB 2.0 devices.

1.10.2 Internal connectors

1. CPU, chassis, and power fan connectors
(4-pin CPU_FAN, 3-pin CHA_FAN, 3-pin PWR_FAN)

The fan connectors support cooling fans of 350 mA~2000 mA (24 W max.) or a total of
1 A~3.48 A (41.76 W max.) at +12V. 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 CPU/Chassis fan supports the ASUS Q-FAN feature.

1-22 Chapter 1: Product introduction

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

P5E3 PRO

P5E3 PRO ATX power connectors

EATXPWR

ATX12V

PIN 1

+12V DC

+12V DC

GND

GND

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

P5E3 PRO Serial port (COM1) connector

P5E3 PRO

PIN 1

COM1

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 12 V Specication 2.0 (or later version) and provides a minimum

power of 400 W.

• 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.

3. Serial port connectors (10-1 pin COM1)

The connector is for a serial (COM) port. Connect the serial port module cable to the
connector, then install the module to a slot opening at the back of the system chassis.

The serial port bracket (COM1) is purchased separately.

ASUS P5E3 PRO 1-23

4. Serial ATA connectors (7-pin SATA1-6)

P5E3 PRO SATA connectors

SATA4

GND

RSATA_TXN4

RSATA_TXP4

GND

RSATA_RXN4

RSATA_RXP4

GND

SATA6 SATA5

GND
RSATA_TXN5
RSATA_TXP5

GND

RSATA_RXN5

RSATA_RXP5

GND

GND
RSATA_RXP6
RSATA_RXN6
GND
RSATA_TXP6
RSATA_TXN6
GND

GND

RSATA_TXN3

RSATA_TXP3

GND

RSATA_RXN3

RSATA_RXP3

GND

SATA3

SATA2

GND

RSATA_TXN2

RSATA_TXP2

GND

RSATA_RXN2

RSATA_RXP2

GND

GND

RSATA_TXN2

RSATA_TXP1

GND

RSATA_RXN1

RSATA_RXP1

GND

SATA1

P5E3 PRO

P5E3 PRO Internal audio connector

P5E3 PRO

CD

Left Audio Channel

GND

GND

Right Audio Channel

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

• Install the Windows® XP Service Pack 2 or later version before using Serial ATA.

• The motherboard does not provide a oppy disk drive connector. You could use a USB
oppy disk drive when installing Windows® XP operating system on a hard disk drive

that includes a RAID/AHCI set. Refer to the bundled Support DVD for how to create a
RAID/AHCI drive disk.

• Due to Windows
drive.

• For more details on RAID/AHCI supplementary guide included in the folder named
Manual in the support DVD.

®

XP limitation, Windows® XP may not recognize the USB oppy disk

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.

1-24 Chapter 1: Product introduction

6. IDE connector (40-1 pin PRI_IDE)

P5E3 PRO

P5E3 PRO IDE connector

PRI_IDE

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

PIN1

The onboard IDE connector is for the Ultra DMA 133/100/66 signal cable. There are
three connectors on each Ultra DMA 133/100/66 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 133/100/66 IDE devices.

Master Black

Slave Gray

Black or gray

ASUS P5E3 PRO 1-25

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

7. System panel connector (20-8 pin PANEL)

P5E3 PRO System panel connector

P5E3 PRO

PIN 1

* Requires an ATX power supply

PLED SPEAKER

PLED+

PLED-

+5V

Ground

Ground

Speaker

IDE_LED+

IDE_LED-

PWR

Ground

Reset

Ground

PANEL

IDE_LED PWRSW RESET

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 IDE_LED)

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

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

the HDD.

•

System warning speaker (4-pin SPEAKER)

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

•

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

This connector is for the system power button. Pressing the power button turns
the system on or puts the system in sleep or soft-off mode depending on the BIOS
settings. Pressing the power switch for more than four seconds while the system is ON
turns the system OFF.

•

Reset button (2-pin RESET)

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

1-26 Chapter 1: Product introduction

8. USB connectors (10-1 pin USB78, USB910, USB1112)

P5E3 PRO

P5E3 PRO USB2.0 connectors

PIN 1

USB+5V

USB_P10-

USB_P10+

GND

NC

USB+5V

USB_P9-

USB_P9+

GND

USB910

PIN 1

USB+5V

USB_P12-

USB_P12+

GND

NC

USB+5V

USB_P11-

USB_P11+

GND

USB1112

PIN 1

USB+5V

USB_P8-

USB_P8+

GND

NC

USB+5V

USB_P7-

USB_P7+

GND

USB78

P5E3 PRO Analog front panel connector

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

NC

MIC2

MICPWR

Line out_R

NC

Line out_L

Legacy AC’97

compliant definition

P5E3 PRO

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

480 Mbps connection speed.

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

The USB module cable is purchased separately.

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

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

•

ASUS P5E3 PRO 1-27

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 2.5.3 Onboard Devices Conguration for
details.

1.11 Software support

1.11.1 Installing an operating system

This motherboard supports Windows® XP/Vista 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
before installing the drivers for better compatibility and system stability.

1.11.2 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.

®

XP Service Pack 3 / Windows® Vista Service Pack 1

Click an icon to
display Support DVD/
motherboard information

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.

1-28 Chapter 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

2. Click the

3. Follow the onscreen instructions to complete the installation.

Utilities tab, then click Install ASUS Update.

Drivers menu appears.

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

Updating the BIOS

To update the BIOS:

1. From the Windows

ASUSUpdate to launch the ASUS Update utility.

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

ASUS P5E3 PRO 2-1

®

desktop, click Start > Programs > ASUS > ASUSUpdate >

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 wish to download then click

Next.

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 utility

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 any of these two ways:

• Press

<Alt> + <F2> during POST to display the following:

ASUSTek EZ Flash 2 BIOS ROM Utility V3.38

FLASH TYPE: MXIC 25L8005

Current ROM

BOARD: P5E3-PRO
VER: 0302
DATE: 05/21/2009

PATH: A:\

A:

Note

[Enter] Select or Load [Tab] Switch [V] Drive Info
[Up/Down/Home/End] Move [B] Backup [ESC] Exit

2-2 Chapter 2: BIOS information

Update ROM

BOARD: Unknown
VER: Unknown
DATE: Unknown

• Enter the BIOS setup program. Go to the Tools menu to select EZ Flash 2 and
press <Enter> to enable it.
Press <Tab> to switch between drives until the correct BIOS le is found.

2. When the correct BIOS le is found, EZ Flash 2 performs the BIOS update process

and automatically reboots the system when done.

• Only a USB ash disk with FAT 32/16 format and single partition can support the ASUS

EZ Flash 2 utility.

• Do not shut down or reset the system while updating the BIOS to prevent system boot
failure!

2.1.3 ASUS CrashFree BIOS 3 utility

The ASUS CrashFree BIOS 3 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 update a corrupted BIOS

le using the motherboard support DVD or a USB ash disk that contains the updated BIOS
le.

• Prepare the motherboard support DVD or the USB ash disk containing the updated

motherboard BIOS before using this utility.

• Always connect the SATA cable to the SATA1 / SATA 2 connector. Otherwise, the utility
will not function.

Recovering the BIOS

To recover the BIOS:

1. Turn on the system.

2. Insert the support DVD or USB ash disk containing the BIOS le to the optical drive or

USB port.

3. The utility displays the following message and automatically checks the support DVD

or USB ash disk for the BIOS le.

Bad BIOS checksum. Starting BIOS recovery...
Checking for CD-ROM...
CD-ROM not found!
Checking for USB Device...

When found, the utility reads the BIOS le and starts erasing the corrupted BIOS le.

Bad BIOS checksum. Starting BIOS recovery...
Checking for USB Device...
USB Device found.

Reading le “P5E3PRO.ROM”. Completed.

Start Erasing...\

ASUS P5E3 PRO 2-3

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

• Only a USB ash disk with FAT 32/16 format and single partition can support ASUS
CrashFree BIOS 3. The device size should be smaller than 8GB.

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

The recovered BIOS may not be the latest BIOS version for this motherboard. Download

the latest BIOS le from the ASUS website at www.asus.com.

2.2 BIOS setup program

This motherboard supports a programmable Serial Peripheral Interface (SPI) chip that you
can update using the provided utility described in section “2.1 Managing and updating your
BIOS.”

Use the BIOS Setup program when you are installing a motherboard, reconguring your
system, or prompted to “Run Setup.” This section explains how to congure your system

using this utility.

Even if you are not prompted to use the Setup program, you can change the conguration of

your computer in the future. For example, you can enable the security password feature or

change the power management settings. This requires you to recongure your system using
the BIOS Setup program so that the computer can recognize these changes and record them

in the CMOS RAM of the SPI chip.
The SPI chip on the motherboard stores the Setup utility. When you start up the computer,

the system provides you with the opportunity to run this program. Press <Del> during the
Power-On Self-Test (POST) to enter the Setup utility. Otherwise, POST continues with its test
routines.

If you wish to enter Setup after POST, reboot the system by doing any of the following
procedures:

• Restart using the OS standard shutdown procedure.

• Press

• Press the reset button on the system chassis.

• Press the power button to turn the system off then back on.

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

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 Setup program is designed to make it as easy to use as possible. Being a menu-driven
program, it lets you scroll through the various submenus and make your selections from the
available options using the navigation keys.

2-4 Chapter 2: BIOS information

• 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 Defaults item under the Exit Menu. See section 2.9 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.

2.2.1 BIOS menu screen

Menu bar

Main Ai Tweaker Advanced Power Boot Tools Exit

System Time [00:31:48]

System Date [Fri 04/10/2009]
Language [English]

SATA 1 :[Not Detected]
SATA 2 :[Not Detected]
SATA 3 :[Not Detected]
SATA 4 :[Not Detected]
SATA 5 :[Not Detected]
SATA 6 :[Not Detected]

SATA Conguration

System Information

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

Submenu items

Conguration eldsMenu items

BIOS SETUP UTILITY

General help

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

Navigation keys

2.2.2 Menu bar

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

Main For changing the basic system conguration.

Ai Tweaker For changing system performance settings

Advanced For changing the advanced system settings.

Power For changing the advanced power management (APM)

Boot For changing the system boot conguration.

Tools For conguring options for special functions.

Exit For selecting the exit options and loading default settings.

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

conguration.

ASUS P5E3 PRO 2-5

2.2.3 Navigation keys

At the bottom right corner of a menu screen are the navigation keys for that particular menu.
Use the navigation keys to select items in the menu and change the settings.

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

2.2.4 Menu items

The highlighted item on the menu bar displays the specic items for that menu. For example,

selecting Main shows the Main menu items.
The other items (Ai Tweaker, Advanced, Power, Boot, Tools, and Exit) on the menu bar have

their respective menu items.

2.2.5 Submenu items

A solid triangle before each item on any menu screen means that the item has a submenu. To
display the submenu, select the item and press <Enter>.

2.2.6 Conguration elds

These elds show the values for the menu items. If an item is user- congurable, you can
change the value of the eld opposite the item. You cannot select an item that is not user­congurable.A congurable eld is enclosed in brackets, and is highlighted when selected. To
change the value of a eld, select it then press <Enter> to display a list of options. Refer to

2.2.7 Pop-up window.

2.2.7 Pop-up window

Select a menu item then press
<Enter> to display a pop-up

window with the conguration

options for that item.

2.2.8 Scroll bar

A scroll bar appears on the right
side of a menu screen when there

are items that do not t on the

screen. Press the <Up> / <Down>
arrow keys or <Page Up> /<Page

Main Ai Tweaker Advanced Power Boot Tools Exit

Suspend Mode [Auto]
ACPI 2.0 Support [Disabled]
ACPI APIC support [Enabled]

APM Conguration

Hardware Monitor

v02.61 (C)Copyright 1985-2009, American, American Megatrends, Inc.

BIOS SETUP UTILITY

Options

Disabled

Enabled

Pop-up window

Scroll bar

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

Down> keys to display the other
items on the screen.

2.2.9 General help

At the top right corner of the menu screen is a brief description of the selected item.

2-6 Chapter 2: BIOS information

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.

Refer to section 2.2.1 BIOS menu screen for information on the menu screen items and
how to navigate through them.

Main Ai Tweaker Advanced Power Boot Tools Exit

System Time [00:31:48]

System Date [Fri 04/10/2009]
Language [English]

SATA 1 :[Not Detected]
SATA 2 :[Not Detected]
SATA 3 :[Not Detected]
SATA 4 :[Not Detected]
SATA 5 :[Not Detected]
SATA 6 :[Not Detected]

SATA Conguration

System Information

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

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]

Allows you to set the system time.

2.3.2 System Date [Day xx/xx/xxxx]

Allows you to set the system date.

2.3.3 Language [English]

Allows you to choose the BIOS language version from the options.
Conguration options: [繁體中文] [日本語] [Français] [Deutsch] [English]

2.3.4 SATA 1-6

While entering Setup, the BIOS automatically detects the presence of SATA devices. There
is a separate sub-menu for each SATA device. Select a device item then press <Enter> to
display the 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 N/A if no Serial ATA device is installed in

the system.

Type [Auto]

Selects the type of SATA drive. Setting to [Auto] allows automatic selection of the appropriate

SATA 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]

ASUS P5E3 PRO 2-7

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) [Auto]

Enables or disables data multi-sectors transfers. When 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 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]

2.3.5 SATA Conguration

The items in this menu allow you to set or change the congurations for the SATA devices
installed in the system. Select an item then press <Enter> if you want to congure the item.

SATA Conguration [Enhanced]

Allows you to set the SATA conguration. Conguration options: [Disabled] [Compatible]

[Enhanced]

Configure SATA as [IDE]

Sets the conguration for the Serial ATA connectors supported by the Southbridge chip.
Conguration options: [IDE] [RAID] [AHCI]

Due to Intel chipset driver support regulation, the AHCI mode is not supported in Windows
XP environment. The AHCI mode is only supported by Windows Vista with OS built-in
driver.

Hard Disk Write Protect [Disabled]

Disables or enables device write protection. This will be effective only if device is accessed

throuh BIOS. Conguration option: [Disabled] [Enabled]

SATA 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]

2-8 Chapter 2: BIOS information

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.

ASUS BIOS

Displays the auto-detected BIOS information.

Processor

Displays the auto-detected CPU specication.

System Memory

Displays the auto-detected system memory.

2.4 Ai Tweaker menu

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

Main Ai Tweaker Advanced Power Boot Tools Exit

Congure System Performance Settings

Ai Overclock Tuner [Auto]

CPU Ratio Setting [Auto]
FSB Strap to North Bridge [Auto]
DRAM Frequency [Auto]
DRAM Command Rate [Auto]
DRAM CLK Skew on Channel A [Auto]
DRAM CLK Skew on Channel B [Auto]
DRAM Timing Control [Auto]

1st Informaton: 9-9-9-24-4-60-10-5
2nd Information: 10-5-5-4-7-4-7

DRAM Static Read Control [Auto]
DRAM Dynamic Write Control [Auto]
Ai Clock Twister [Auto]
Ai Transaction Booster [Auto]

******** Please key in numbers directly! ********

CPU Voltage [Auto]

v02.61 (C) Copyright 1985-2009, American Megatrends, Inc.

Scroll down to display the following iems:

Main Ai Tweaker Advanced Power Boot Tools Exit

CPU PLL Voltage [Auto]

FSB Termination Voltage [Auto]
DRAM Voltage [Auto]
NB Voltage [Auto]
SB Voltage [Auto]
Clock Over-Charging Voltage [Auto]

************************************************

Load-Line Calibration [Auto]
CPU GTL Voltage Reference [Auto]
NB GTL Voltage Reference [Auto]
CPU Spread Spectrum [Auto]
PCIE Spread Spectrum [Auto]

BIOS SETUP UTILITY

BIOS SETUP UTILITY

Options

[X.M.P]
When X.M.P. is
enabled the CPU FSB
frequency, CPU ratio
and memory parameters
will be optimized
automatically.

Min=1.50V
Max=2.78V
Standard=1.50V
Increment=0.02V
+/-: Raise/Reduce

v02.61 (C) Copyright 1985-2009, American Megatrends, Inc.

ASUS P5E3 PRO 2-9

Ai Overclock Tuner [Auto]

Allows selection of CPU overclocking options to achieve desired CPU internal frequency.

Select either one of the preset overclocking conguration options:

Manual - Allows you to individually set overclocking parameters.
Auto - Loads the optimal settings for the system.
X.M.P. - If you install memory module(s) supporting the eXtreme Memory Prole (X.M.P.)

Technology, choose this item to set the prole(s) supported by your memory
module(s) for optimizing the system performance.

The following two items appear only when you set the Ai Overclock Tuner item to
[Manual].

FSB Frequency [XXX]

Displays the frequency sent by the clock generator to the system bus and PCI bus. The
value of this item is auto-detected by the BIOS. Input the desired CPU frequency using
the numeric keypad. The values range from 200 to 800. Refer to the table below for the
correct Front Side Bus and CPU External Frequency settings.

FSB/CPU External Frequency Synchronization

Front Side Bus CPU External Frequency

FSB 1600 400 MHz

FSB 1333 333 MHz

FSB 1066 266 MHz

FSB 800 200 MHz

PCIE Frequency [Auto]

Allows you to set the PCI Express frequency. Use the <+> and <-> keys to adjust the
PCIE frequency. The values range from 100 to 150.

The following conguration options for the following sub-item vary depending on the DIMMs

you install on the motherboard.

eXtreme Memory Profile [Disabled]

This item appears only when you set the Ai Overclock Tuner item to [X.M.P.] and

allows you to enable or disable the eXtreme Memory Prole. Conguration options:

[Disabled] [Enabled]

CPU Ratio Setting [Auto]

Allows you to set the ratio between CPU Core Clock and the FSB Frequency. Conguration

options: [Auto]

FSB Strap to North Bridge [Auto]

Allows you to adjust the FSB strap. Conguration options: [Auto] [200MHz] [266MHz]
[333MHz] [400MHz]

DRAM Frequency [Auto]

Allows you to set the DDR3 operating frequency. Conguration options: [Auto]
[DDR3-667MHz] [DDR3-800MHz] [DDR3-835MHz] [DDR3-887MHz] [DDR3-1002MHz]
[DDR3-1066MHz] [DDR3-1111MHz] [DDR3-1335MHz] [DDR3-*1600MHz*] [DDR3­*1800MHz*]

2-10 Chapter 2: BIOS information

DRAM Command Rate [Auto]

Conguration options: [Auto] [1N] [2N]

DRAM CLK Skew on Channel A/B [Auto]

Allows you to set the DIMM clock skew on channel A1, A2, B1, and B2. Conguration options:

[Auto] [Advance 350ps] [Advance 300ps] [Advance 250ps] [Advance 200ps] [Advance 150ps]
[Advance 100ps] [Advance 50ps] [Normal] [Delay 50ps] [Delay 100ps] [Delay 150ps] [Delay
200ps] [Delay 250ps] [Delay300ps] [Delay 350ps]

DRAM Timing Control [Auto]

Allows you to select the DRAM timing conguration. Conguration options: [Auto] [Manual]

• The following items appear only when you set the DRAM Timing Control item to
[Manual].

• The conguration options for some of the following items vary dependin on the DIMMs

you install on the motherboard.

1st Information

CAS# Latency [5DRAM Clocks]

Conguration options: [4 DRAM Clocks] [5 DRAM Clocks] [6 DRAM Clocks] [7 DRAM

Clocks] [8 DRAM Clocks] [9 DRAM Clocks] [10 DRAM Clocks] [11 DRAM Clocks]

DRAM RAS# to CAS# Delay [5DRAM Clocks]
DRAM RAS# Precharge [5DRAM Clocks]
DRAM RAS# Activate to Precharge [15DRAM Clocks]

Conguration options: [3 DRAM Clocks] [4 DRAM Clocks] [5 DRAM Clocks] [6 DRAM

Clocks] [7 DRAM Clocks] [8 DRAM Clocks] [9 DRAM Clocks] [10 DRAM Clocks] [11
DRAM Clocks] [12 DRAM Clocks] [13 DRAM Clocks] [14 DRAM Clocks] [15 DRAM
Clocks] [16 DRAM Clocks] [17 DRAM Clocks] [18 DRAM Clocks]

RAS# to RAS# Delay [Auto]

Conguration options: [Auto] [1 DRAM Clocks] [2 DRAM Clocks] [3 DRAM Clocks] [4

DRAM Clocks] [5 DRAM Clocks] [6 DRAM Clocks] [7 DRAM Clocks] [8 DRAM Clocks]
[9 DRAM Clocks] [10 DRAM Clocks] [11 DRAM Clocks] [12 DRAM Clocks] [13 DRAM
Clocks] [14 DRAM Clocks] [15 DRAM Clocks]

Row Refresh Cycle Time [Auto]

Conguration options: [Auto] [30 DRAM Clocks] [36 DRAM Clocks] [48 DRAM Clocks]

[60 DRAM Clocks] [72 DRAM Clocks] [82 DRAM Clocks] [88 DRAM Clocks] [90 DRAM
Clocks] [100 DRAM Clocks] [110 DRAM Clocks]

Writer Recovery Time [Auto]
Read to Precharge Time [Auto]

Conguration options: [Auto] [1 DRAM Clocks] [2 DRAM Clocks] [3 DRAM Clocks] [4

DRAM Clocks] [5 DRAM Clocks] [6 DRAM Clocks] [7 DRAM Clocks] [8 DRAM Clocks]
[9 DRAM Clocks] [10 DRAM Clocks] [11 DRAM Clocks] [12 DRAM Clocks] [13 DRAM
Clocks] [14 DRAM Clocks] [15 DRAM Clocks]

2nd Information

READ to WRITE Delay (S/D) [Auto]
WRITE to READ Delay (S) [Auto]
WRITE to READ Delay (D) [Auto]
READ to READ Delay (S) [Auto]
READ to READ Delay (D) [Auto]
WRITE to WRITE Delay (S) [Auto]
WRITE to WRITE Delay (D) [Auto]

Conguration options: [Auto] [1 DRAM Clocks] [2 DRAM Clocks] [3 DRAM Clocks] [4

ASUS P5E3 PRO 2-11

DRAM Clocks] [5 DRAM Clocks] [6 DRAM Clocks] [7 DRAM Clocks] [8 DRAM Clocks]
[9 DRAM Clocks] [10 DRAM Clocks] [11 DRAM Clocks] [12 DRAM Clocks] [13 DRAM
Clocks] [14 DRAM Clocks] [15 DRAM Clocks]

DRAM Static Read Control [Auto]

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

DRAM Dynamic Write Control [Auto]

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

Ai Clock Twister [Auto]

Allows you to set the DRAM performance. Conguration options: [Auto] [Light] [Moderatet]

[Strong]

Ai Transaction Booster [Auto]

Allows you to set the system performance. Conguration options: [Auto] [Disabled] [Enabled]

CPU Voltage [Auto]

Allows you to set the CPU voltage. The values range from 0.8500V to 1.7000V with a

0.00625V interval. Use the <+> and <-> keys to adjust the value. Conguration options:
[Auto]

Refer to the CPU documentatiion before setting the CPU voltage. Setting a high voltage
may damage the CPU permanently, and setting a low voltage may make the system
unstable.

CPU PLL Voltage [Auto]

Allows you to set the CPU PLL voltage. The values range from 1.50V to 2.78V with a 0.02V
interval.

FSB Termination Voltage [Auto]

Allows you to set the Front Side Bus termination voltage. The values range from 1.20V to

1.50V with a 0.02V interval.

DRAM Voltage [Auto]

Allows you to set the DRAM voltage. The values range from 1.50V to 2.78V with a

0.02V interval.

NB Voltage [Auto]

Allows you to set the North Bridge voltage. The values range from 1.25V to 1.91V with a

0.02V interval.

• Setting CPU PLL Voltage, FSB Termination Voltage, DRAM Voltage, and North
Bridge Voltage to a high level may damage the chipset, memory module, and CPU
permanently. Proceed with caution.

• Values of the CPU PLL Voltage, FSB Termination Voltage, DRAM Voltage and North
Bridge Voltage are labeled in different colors to indicate the risk of high voltage settings.
Refer to the table below for details.

• The system may need better cooling system to work stably under high voltage settings.

2-12 Chapter 2: BIOS information

SB Voltage [Auto]

Allows you to set the South Bridge voltage. The values range from 1.050V to 1.200V with a

0.15V interval.

Clcok Over-Charging Voltage [Auto]

Allows you to set the clock over-charging voltage. The values range from 0.70V to 1.00V with
a 0.10V interval.

Loadline Calibration [Auto]

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

CPU GTL Reference [Auto]

Allows you to set the CPU GTL voltage reference.

Conguration options: [Auto] [0.67x] [0.65x] [0.63x] [0.62x]

North Bridge Voltage Refernece [Auto]

Conguration options: [Auto] [0.67x] [0.61x]

CPU Spread Spectrum [Auto]

Allows you to disable or set to auto the CPU clock spread spectrum.

Conguration options: [Auto] [Disabled]

PCIE Spread Spectrum [Auto]

Allows you to disable or set to auto the PCI Express clock spread spectrum.

Conguration options: [Auto] [Disabled]

ASUS P5E3 PRO 2-13

2.5 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 Ai Tweaker Advanced Power Boot Tools Exit

CPU Conguration

Chipset

Onboard Devices Conguration
USB Conguration

PCIPnP

BIOS SETUP UTILITY

Congure CPU.

2.5.1 CPU Conguration

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

CPU Ratio Setting [Auto]

Sets the ration between CPU core clock and the FSB frequency. Key in ratio numbers
directly.

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

C1E Support [Enabled]

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

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]

Vanderpool Technology [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]

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]

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]

2-14 Chapter 2: BIOS information

The following item appears only when you installed an Intel® 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 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]

2.5.2 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]

Allows you to enabled or disable the remapping of the overlapped PCI memory above the
total physical memory. Enable this option only when you install 64-bit operating system.

Conguration options: [Disabled] [Enabled]

Initiate Graphic Adapter [PEG/PCI]

Allows you to decide which graphics controller to use as the primary boot device.

Conguration options: [PCI/PEG] [PEG/PCI]

PEG Port Control [Auto]

Conguration options: [Auto] [Disabled]

PEG Force x1 [Disabled]

This item appears when the PEG Port Control item is set to [Auto].

Conguration options: [Enabled] [Disabled]

2.5.3 Onboard Devices Conguration

High Denition Audio [Enabled]

Allows you to enable or disable the high denition audio.
Conguration options: [Enabled] [Disabled]

Front Panel Type [HD Audio]

Allows you to select the front panel type. If High Denition Audio Front Panel used,
please set HD Audio mode. Conguration options: [AC97] [HD Audio]

Marvell IDE controller [Enabled]

Allows you to enable or disable the Marvell IDE controller.

Conguration options: [Disabled] [Enabled]

Marvell IDE BOOT ROM [Enabled]

Allows you to enable or disable the Marvell IDE Boot ROM. This item appears only
when the Marvell IDE item is set to Enabled.

Conguration options: [Disabled] [Enabled]

ASUS P5E3 PRO 2-15

Marvell GigaBit LAN [Enabled]

Allows you to enable or disable the onboard LAN controller.

Conguration options: [Enabled] [Disabled]

LAN Boot ROM [Disabled]

Allows you to enable or disable the boot ROM in the onboard LAN controller. This item

appears only when the Onboard LAN item is set to Enabled. Conguration options:

[Disabled] [Enabled]

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]

2.5.4 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]

Allows you to disable or enable the USB functions. Conguration options: [Disabled]

[Enabled]

USB 2.0 Controller [Enabled]

Allows you to enable or disable USB 2.0 controller.

Conguration options: [Enabled] [Disabled]

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]

BIOS EHCI Hand-off [Enabled]

Allows you to enable the support for operating systems without an EHCI hand-off feature.

Conguration options: [Disabled] [Enabled]

Port 64/60 Emulation [Disabled]

Allows you to enable or disable the I/O port 60h/64h emulation support. This item should
be enabled for the complete USB keyboard legacy support for non-USB aware OSes.

Conguration options: [Disabled] [Enabled]

Legacy USB Support [Auto]

Allows you to enable or disable support for Legacy USB storage devices, including USB
ash drives and USB hard drives. Setting 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]

2-16 Chapter 2: BIOS information

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

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 set the emulation type. Conguration options: [Auto] [Floppy] [Forced FDD]

[Hard Disk] [CDROM]

2.5.5 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 set to [No], BIOS congures all the devices in the system. When 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]

ASUS P5E3 PRO 2-17

2.6 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 Ai Tweaker Advanced Power Boot Tools Exit

Suspend Mode [Auto]

Repost Video on S3 Resume [Disabled]
ACPI 2.0 Support [Disabled]
ACPI APIC Support [Enabled]

APM Conguration

Hardware Monitor

BIOS SETUP UTILITY

Select the ACPI state
used for System
Suspend.

2.6.1 Suspend Mode [Auto]

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

[S1(POS) Only] - Enables the system to enter the ACPI S1 (Power on Suspend) sleep

state. In S1 sleep state, the system appears suspended and stays in a low power
mode. The system can be resumed at any time.
[S3 Only] - Enables the system to enter the ACPI S3 (Suspend to RAM) sleep state
(default). In S3 sleep state, the system appears to be off and consumes less power
than in the S1 state. When signaled by a wake-up device or event, the system resumes
to its working state exactly where it was left off.

[Auto] - Detected by OS.

2.6.2 Repost Video on S3 Resume [Disabled]

Determines whether to invoke VGA BIOS POST on S3/STR resume.

Conguration options: [Disabled] [Enabled]

2.6.3 ACPI 2.0 Support [Disabled]

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

2.6.4 ACPI APIC Support [Enabled]

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

[Enabled]

2.6.5 APM Conguration

Restore on AC Power Loss [Power Off]

When set to [Power Off], the system goes into off state after an AC power loss. When set
to [Power On], the system goes on after an AC power loss. When 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]

2-18 Chapter 2: BIOS information

Power On By RTC Alarm [Disabled]

Allows you to enable or disable 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 Modems [Disabled]

This allows either settings of [Enabled] or [Disabled] for powering up the computer when

the external modem receives a call while the computer is in Soft-off mode. Conguration

options: [Disabled] [Enabled]

Resume On PCI Devices [Disabled]

When set to [Enabled], this parameter allows you to wake the system through a PCI LAN
or modem card. This feature requires an ATX power supply that provides at least 1A on the

+5VSB lead. Conguration options: [Disabled] [Enabled]

Resume On PCIE Devices [Disabled]

When set to [Enabled], this parameter allows you to wake the system through a PCI Express
card. 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]

Allows you to use specic keys on the keyboard to turn on the system. This feature requires
an ATX power supply that provides at least 1A on the +5VSB lead. Conguration options:

[Disabled] [Space Bar] [Ctrl-Esc] [Power Key]

2.6.5 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 wish to display the detected temperatures.

CPU Fan Speed [xxxxRPM] or [Ignored]

The onboard hardware monitor automatically detects and displays the CPU 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 wish to display the detected speed.

Chassis Fan Speed [Ignored] or [N/A]

The onboard hardware monitor automatically detects and displays the 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 wish to display the detected speed.

Power Fan Speed [Ignored] or [N/A]

The onboard hardware monitor automatically detects and displays the Power 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 wish to display the detected speed.

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.

ASUS P5E3 PRO 2-19

CPU Q-Fan Control [Disabled]

Allows you to enable or disable the Q-Fan control. Conguration options: [Disabled] [Enabled]

Chassis Q-Fan Controls [Disabled]

Allows you to enable or disable the Q-Fan control. Conguration options: [Disabled] [Enabled]

2.7 Boot menu

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

Main Ai Tweaker Advanced Power Boot Tools Exit

Boot Settings

Boot Device Priority

Boot Settings Conguration

Security

2.7.1 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]

2.7.2 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 drive (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]

2-20 Chapter 2: BIOS information

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]

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]

2.7.3 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

2. On 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.

Change Supervisor Password item and press <Enter>.

If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock
(RTC) RAM. See section 1.9 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.

ASUS P5E3 PRO 2-21

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. On 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.

Clear User Password

Select this item to clear the user password.

Password Check [Setup]

When set to [Setup], BIOS checks for user password when accessing the Setup utility. When
set to [Always], BIOS checks for user password both when accessing Setup and booting the

system. Conguration options: [Setup] [Always]

2.8 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 Ai Tweaker Advanced Power Boot Tools Exit

ASUS EZ Flash 2

Express Gate [Auto]
Enter OS Timer [10 Seconds]
Reset User Data [No]

ASUS O.C. Prole

AI NET 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)

2.8.1 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. Please see section 2.1.2 for details.

2-22 Chapter 2: BIOS information

2.8.2 Express Gate [Auto]

Allows you to enable or disable the ASUS Express Gate feature. The ASUS Express Gate
feature is a unique instant-on environment that provides quick access to the Internet browser

and Skype. Conguration options: [Enabled] [Disabled] [Auto]

Enter OS Timer [10 Seconds]

Sets countdown duration that the system waits at the Express Gate’s rst screen

before starting Windows or other installed OS. Choose [Prompt User] to stay at the

rst screen of Express Gate for user action.
Conguration options: [Prompt User] [1 second] [3 seconds] [5 seconds]

[10 seconds] [15 seconds] [20 seconds] [30 seconds]

Reset User Data [No]

Allows you to clear Express Gate’s user data.

Conguration options: [No] [Reset]

When setting this item to [Reset], make sure to save the setting to the BIOS so that
the user data will be cleared the next time you enter the Express Gate. User data
includes the Express Gate’s settings as well as any personal information stored by the
web browser (bookmarks, cookies, browsing history, etc.). This is useful in the rare
case where corrupt settings prevent the Express Gate environment from launching
properly.

The rst time wizard will run again when you enter the Express Gate environment after

clearing its settings.

2.8.3 ASUS O.C. Prole

his item allows you to store or load multiple BIOS settings.

Save to Proe 1/2

Allows you to save the current BIOS le to the BIOS Flash. Press <Enter> to save the le.

Load from Prole 1/2

Allows you to load the previous BIOS settings saved in the BIOS Flash. Press <Enter> to

load the le.

Start O.C. Prole

Allows you to run the utility to save and load CMOS. Press <Enter> to run the utility.

2.8.4 AI NET 2

Check Marvell LAN cable [Disabled]

Enables or disables checking of the Marvell LAN cable during the Power-On Self-Test

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

ASUS P5E3 PRO 2-23

2.9 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 Ai Tweaker 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.

Exit & Save Changes

Once you are nished making your selections, choose this option from the Exit menu to

ensure the values you selected are saved to the CMOS RAM. An onboard backup battery
sustains the CMOS RAM so it stays on even when the PC is turned off. When you select this

option, a conrmation window appears. Select OK to save changes and exit.

Exit & Discard Changes

Select this option only if you do not want to save the changes that you made to the Setup

program. If you made changes to elds other than System Date, System Time, and
Password, the BIOS asks for a conrmation before exiting.

Discard Changes

This option allows you to discard the selections you made and restore the previously saved
values. After selecting this option, a conrmation appears. Select OK to discard any changes
and load the previously saved values.

Load Setup Defaults

This option allows you to load the default values for each of the parameters on the Setup
menus. When you select this option or if you press <F5>, a conrmation window appears.
Select OK to load default values. Select Exit & Save Changes or make other changes
before saving the values to the non-volatile RAM.

BIOS SETUP UTILITY

Exit system setup
after saving the
cahnges.

F10 key can be used
for this operation.

2-24 Chapter 2: BIOS information