Motherboard
P5P41T LE
E4949
First Edition V1
August 2009
Copyright © 2009 ASUSTeK Computer Inc. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK Computer Inc. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless
such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identification or explanation and to the
owners’ benefit, without intent to infringe.
ii
Contents
Notices.......................................................................................................... vi
Safety information...................................................................................... vii
About this guide........................................................................................ viii
P5P41T LE specifications summary.......................................................... ix
Chapter 1:
Product introduction
1.1
Welcome!....................................................................................... 1-1
1.2
Package contents.......................................................................... 1-1
1.3
Special features............................................................................. 1-1
1.3.1
Product highlights............................................................ 1-1
1.3.2
Innovative ASUS features................................................ 1-2
1.4
Before you proceed...................................................................... 1-4
1.5
Motherboard overview.................................................................. 1-5
1.6
1.7
1.8
1.9
1.5.1
Placement direction......................................................... 1-5
1.5.2
Screw holes..................................................................... 1-5
1.5.3
Motherboard layout.......................................................... 1-6
1.5.4
Layout contents................................................................ 1-6
Central Processing Unit (CPU).................................................... 1-7
1.6.1
Installing the CPU............................................................ 1-7
1.6.2
Installing the CPU heatsink and fan............................... 1-10
1.6.3
Uninstalling the CPU heatsink and fan...........................1-11
System memory.......................................................................... 1-12
1.7.1
Overview........................................................................ 1-12
1.7.2
Memory configurations................................................... 1-13
1.7.3
Installing a DIMM........................................................... 1-16
1.7.4
Removing a DIMM......................................................... 1-16
Expansion slots........................................................................... 1-17
1.8.1
Installing an expansion card.......................................... 1-17
1.8.2
Configuring an expansion card...................................... 1-17
1.8.3
PCI slots......................................................................... 1-17
1.8.4
PCI Express x1 slots...................................................... 1-17
1.8.5
PCI Express x16 slot...................................................... 1-17
Jumpers....................................................................................... 1-18
iii
Contents
1.10
1.11
Connectors.................................................................................. 1-19
1.10.1
Rear panel connectors................................................... 1-19
1.10.2
Internal connectors........................................................ 1-20
Software support......................................................................... 1-26
1.11.1
Installing an operating system....................................... 1-26
1.11.2
Support DVD information............................................... 1-26
Chapter 2: 2.1
2.2
2.3
2.4
iv
BIOS information
Managing and updating your BIOS............................................. 2-1
2.1.1
ASUS Update utility......................................................... 2-1
2.1.2
ASUS EZ Flash 2 utility.................................................... 2-2
2.1.3
ASUS CrashFree BIOS.................................................... 2-3
BIOS setup program..................................................................... 2-4
2.2.1
BIOS menu screen........................................................... 2-4
2.2.2
Menu bar.......................................................................... 2-5
2.2.3
Navigation keys................................................................ 2-5
2.2.4
Menu items...................................................................... 2-5
2.2.5
Submenu items................................................................ 2-5
2.2.6
Configuration fields.......................................................... 2-5
2.2.7
Pop-up window................................................................ 2-6
2.2.8
Scroll bar.......................................................................... 2-6
2.2.9
General help.................................................................... 2-6
Main menu..................................................................................... 2-7
2.3.1
System Time.................................................................... 2-7
2.3.2
System Date.................................................................... 2-7
2.3.3
Primary IDE Master/Slave and SATA 1-4................................2-7
2.3.4
Storage Configuration...................................................... 2-8
2.3.5
System Information.......................................................... 2-9
Advanced menu............................................................................ 2-9
2.4.1
JumperFree Configuration............................................... 2-9
2.4.2
CPU Configuration..........................................................2-11
2.4.3
Chipset........................................................................... 2-12
2.4.4
Onboard Devices Configuration..................................... 2-13
2.4.5
USB Configuration......................................................... 2-13
2.4.6
PCI PnP......................................................................... 2-14
Contents
2.5
2.6
2.7
2.8
Power menu................................................................................. 2-15
2.5.1
Suspend Mode............................................................... 2-15
2.5.2
ACPI 2.0 Support .......................................................... 2-15
2.5.3
ACPI APIC Support . ..................................................... 2-15
2.5.4
APM Configuration......................................................... 2-15
2.5.5
Hardware Monitor.......................................................... 2-16
Boot menu................................................................................... 2-17
2.6.1
Boot Device Priority....................................................... 2-17
2.6.2
Boot Settings Configuration........................................... 2-17
2.6.3
Security.......................................................................... 2-18
Tools menu.................................................................................. 2-19
2.7.1
ASUS EZ Flash 2........................................................... 2-19
2.7.2
Express Gate ................................................................ 2-19
2.7.3
AI NET 2........................................................................ 2-20
Exit menu..................................................................................... 2-20
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
•
This device may not cause harmful interference, and
•
This device must accept any interference received including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with manufacturer’s instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment to an outlet on a circuit different from that to which the receiver is
connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics card is required
to assure compliance with FCC regulations. Changes or modifications to this unit not
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
This class B digital apparatus complies with Canadian ICES-003.
REACH
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://green.asus.com/english/REACH.htm.
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.
vi
Safety information
Electrical safety
•
To prevent electric shock hazard, disconnect the power cable from the electric outlet
before relocating the system.
•
When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
•
Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
•
Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
•
Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
•
If the power supply is broken, do not try to fix it by yourself. Contact a qualified service
technician or your retailer.
•
The optical S/PDIF is an optional component (may or may not be included in your
motherboard) and is defined as a CLASS 1 LASER PRODUCT.
INVISIBLE LASER RADIATION, AVOID EXPOSURE TO BEAM.
•
Never dispose of the battery in fire. 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, ensure that all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
•
To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets and circuitry.
•
Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may become wet.
This motherboard should only be used in environments with ambient temperatures between
5℃ (14℉) and 40℃ (104℉).
•
Place the product on a stable surface.
•
If you encounter technical problems with the product, contact a qualified service
technician or your retailer.
vii
About this guide
This user guide contains the information you need when installing and configuring the
motherboard.
How this guide is organized
This guide contains the following parts:
•
Chapter 1: Product introduction
•
This chapter describes the features of the motherboard and the new technology it
supports.
Chapter 2: BIOS information
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.
Where to find more information
Refer to the following sources for additional information and for product and software
updates.
1. ASUS websites
2.
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
Optional documentation
Your product package may include optional documentation, such as warranty flyers,
that may have been added by your dealer. These documents are not part of the
standard package.
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
P5P41T LE specifications summary
CPU
LAN
LGA775 Socket for Intel® Core™2
�����������������������������
Extreme /�������������
Core™2 Quad /
Core™2 Duo / Pentium® dual-core / Celeron® dual-core / Celeron® processors
Supports Intel® 45nm multi-core CPU
Intel® Hyper-Threading Technology ready
Supports Enhanced Intel SpeedStep Technology (EIST)
* Refer to www.asus.com for Intel® CPU support list
Northbridge: Intel® G41
Southbridge: Intel® ICH7
1333/1066/800MHz
Dual-channel memory architecture
- 2 x 240-pin DIMM sockets support unbuffered non-ECC
DDR3 1333 (O.C.)/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.
1 x PCIe x16 slot
2 x PCIe x1 slots
3 x PCI slots
Southbridge Intel® ICH7 supports:
4 x Serial ATA 3Gb/s connectors
1 x UltraDMA 100/66/33 connector
PCIe Gb LAN
Audio
ALC662 High Definition Audio 6-channel CODEC
USB
8 x USB 2.0/1.1 ports (4 ports at mid-board, 4 ports at back
panel)
ASUS Special
features
ASUS CrashFree BIOS 3
ASUS EZ Flash2
ASUS EPU-L
ASUS Q-Fan
ASUS AI NET2
ASUS MyLogo 2
ASUS Turbo Key
ASUS Express Gate
Chipset
System bus
Memory
Expansion slots
Storage
(continued on the next page)
ix
P5P41T LE specifications summary
Rear panel ports
Internal connectors
BIOS features
Manageability
Accessories
Support DVD
Form factor
1 x PS/2 keyboard port
1 x PS/2 mouse port
1 x LAN (RJ-45) port
4 x USB 2.0/1.1 ports
6-channel audio I/O port
1 x COM port
1 x Parallel port
1 x High Definition front panel audio connector
1 x S/PDIF out connector
1 x Speaker connector
1 x System panel connector
2 x USB 2.0 connectors support additional 4 USB 2.0 ports
1 x CPU fan connector
1 x Chassis fan connector
1 x IDE connector
1 x 24-pin EATX Power connector
1 x 4-pin ATX 12V Power connector
4 x SATA connectors
8 Mb Flash ROM, AMI BIOS, PnP, DMI v2.0, WfM2.0, SMBIOS
v2.5, ACPI v2 0a
WOL, PXE, WOR by Ring, PME Wake Up
1 x UltraDMA 100/66/33 cable
2 x Serial ATA cables
1 x I/O shield
User Manual
Drivers
ASUS Update
ASUS PC Probe II
Anti-virus software (OEM version)
ATX form factor: 12 in x7.2 in (30.5 cm x 18.3cm)
*Specifications are subject to change without notice.
Chapter 1
Product introduction
1.1
Welcome!
Thank you for buying an ASUS® P5P41T LE 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 P5P41T LE motherboard
Cables
2 x Serial ATA cables
1 x Ultra DMA 100/66/33 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
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 1333/ 1066/ 800 MHz FSB.
This motherboard also supports Intel® CPUs in the 45nm manufacturing
process.
ASUS P5P41T LE
1-1
Intel® G41 Chipset
The Intel® G41 Express Chipset is designed to support dual-channel
DDR3 1333 (overclocking)/ ��������������������������������������������
1066 /��������������������������������������
800 architecture, 1333/1066/800 Front
Side Bus (FSB), PCIe 1.1, and mutli-core CPUs. It especially includes
Intel® Fast memory bandwidth and reduces the latency of the memory
accesses.
Dual channel DDR3 1333 (O.C.)/1066/800 support
This motherboard supports DDR3 memory that features data transfer
rates of 1333 (O.C.)/1066/800 MHz providing great performance for 3D
graphics and other memory-demanding applications.
Serial ATA 3Gb/s technology
This motherboard supports hard drives based on the Serial ATA (SATA)
3Gb/s storage specifications, delivering enhanced scalability and
doubling the bus bandwidth for high-speed data saving and retrieval.
Gigabit LAN solution
The onboard LAN controller is a highly integrated Gb LAN controller. It is
enhanced with an ACPI management function to provide efficient power
management for advanced operating systems.
1.3.2
Innovative ASUS features
ASUS EPU
ASUS EPU (Energy Processing Unit) provides total system power
management by detecting the current PC loading and intelligently
moderating power in real-time. It automatically provides the most
appropriate power usage to save power and money.
Turbo Key
ASUS Turbo Key allows you to turn the PC power button into
an overclocking button. After you easy setup, Turbo Key boosts
performances without interrupting ongoing work or games, simply through
pressing the button.
ASUS Q-FAN
ASUS Q-FAN technology intelligently and automatically adjusts CPU fan
speed according to system load and temperature, enabling users to work
in distraction-free environment with minimal noise.
ASUS Express Gate
Express Gate is a unique OS built into the motherboard. Five seconds
after bootup, you can instantly surf the Internet without entering the
Windows OS.
1-2
Chapter 1: Product introduction
• ASUS Express Gate supports file uploading from SATA HDDs, ODDs, and USB
drives. It supports file downloading to USB devices only.
• The actrual boot time is subject to hardware configuration and product models.
• Express Gate complies with the OpenGL standard. Refer to http://support.asus.com
for Express Gate source codes.
ASUS MyLogo2™
This feature allows you to convert your favorite photo into a 256-color
boot logo for a more colorful and vivid image on your screen.
ASUS CrashFree BIOS 3
ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to
restore a corrupted BIOS file using the bundled support DVD or USB
flash disk that contains the latest BIOS file.
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 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.
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.
If overclocking failed, press the power button to turn off the system, then reboot the
system.
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 P5P41T LE
1-3
1.4
Before you proceed
Take note of the following precautions before you install motherboard components or change
any motherboard settings.
• Unplug the power cord from the wall socket before touching any component.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due to
static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, ensure that the ATX power supply is
switched off or the power cord is detached from the power supply. Failure to do so may
cause severe damage to the motherboard, peripherals, or components.
Onboard LED
The motherboard comes with a standby power LED that lights up to indicate that the
system is ON, in sleep mode, or in soft-off mode. This is a reminder that you must
shut down the system and unplug the power cable before removing or plugging in any
motherboard component. The illustration below shows the location of the onboard LED.
SB_PWR
P5P41T LE
ON
Standby Power
OFF
Powered Off
P5P41T LE Onboard LED
1-4
Chapter 1: Product introduction
1.5
Motherboard overview
Before you install the motherboard, study the configuration of your chassis to ensure that the
motherboard fits 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
1.5.2
Screw holes
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.
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
P5P41T LE
ASUS P5P41T LE
1-5
1.5.3
Motherboard layout
1
2
3
2
4
18.3cm(7.2in)
CPU_FAN
KBMS
USB34
LAN1_USB12
Intel®
G41
CHA_FAN
PRI_IDE
5
EATXPWR
AUDIO
ICS
9LRS954
ATHEROS
AR8121
30.5cm(12.0in)
LGA775
DDR3 DIMM_B1 (64bit, 240-pin module)
DDR3 DIMM_A1 (64bit, 240-pin module)
LPT
COM1
ATX12V
1
PCIEX1_1
P5P41T LE
Super
I/O
PCIEX16_1
PCIEX1_2
Lithium Cell
CMOS Power
Intel®
ICH7
PCI1
SATA1
SATA3
PCI2
ALC
662
SPDIF_OUT
AAFP
7
SB_PWR
USB56
USB78
CLRTC
SPEAKER
8
F_PANEL
13
12
11
10
9
Layout contents
Connectors/Jumpers/Slots
1-6
6
8Mb
BIOS
PCI3
1.5.4
SATA2
SATA4
Connectors/Jumpers/Slots
Page
1.
ATX power connectors (24-pin EATXPWR, 4-pin 1-21
ATX12V)
Page
8.
Clear RTC RAM (3-pin CLRTC)
1-18
2.
CPU and chassis fan connectors (4-pin
CPU_FAN, 3-pin CHA_FAN)
1-20
9.
System panel connector (10-1 pin F_PANEL)
1-24
3.
Intel CPU socket
1-7
10.
Speaker connector (4- pin SPEAKER)
1-22
4.
DDR3 DIMM slots
1-12
11.
USB connectors (10-1 pin USB56, USB78)
1-25
5.
IDE connector (40-1 pin PRI_IDE)
1-23
12.
Digital audio connector (4-1 pin SPDIF_OUT)
1-20
6.
Serial ATA connectors (7-pin SATA1-4)
1-21
13.
Front panel audio connector (10-1 pin AAFP)
1-22
7.
Onboard LED
1-4
Chapter 1: Product introduction
1.6
Central Processing Unit (CPU)
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 CPU fan cable to the CPU_FAN connector and 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.
P5P41T LE
P5P41T LE CPU socket 775
Before installing the CPU, ensure that the cam box is facing towards you and the load lever
is on your left.
ASUS P5P41T LE
1-7
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.
4.
Lift the load lever in the direction of the
arrow to a 135º angle.
PnP cap
Load plate
4B
Lift the load plate with your thumb and
forefinger to a 100º angle (4A), then
push the PnP cap from the load plate
window to remove (4B).
4A
3
5.
Position the CPU over the socket,
ensuring that the gold triangle is on the
bottom‑left corner of the socket then fit
the socket alignment key into the CPU
notch.
CPU notch
Gold
triangle
mark
Alignment key
1-8
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 finger directly.
7.
Close the load plate (A), then push
the load lever (B) until it snaps into the
retention tab.
A
B
ASUS P5P41T LE
1-9
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®‑certified
multi‑directional heatsink and fan.
• Your Intel® LGA775 heatsink and fan assembly comes in a push-pin design and requires
no tool to install.
• If you purchased a separate CPU heatsink and fan assembly, ensure that you have
properly applied Thermal Interface Material to the CPU heatsink or CPU before you
install the heatsink and fan assembly.
Ensure that you have installed the motherboard to the chassis before you install the CPU
fan and heatsink 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.
A
B
B
A
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
B
A
1
1
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.
1-10
Chapter 1: Product introduction
3.
Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
CPU_FAN
P5P41T LE
P5P41T LE 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
A
B
ASUS P5P41T LE
A
1-11
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
DIMM_A1
DIMM_B1
The motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules
(DIMM) sockets. The figure illustrates the location of the DDR3 DIMM sockets:
Channel
Sockets
Channel A
DIMM_A1
Channel B
DIMM_B1
P5P41T LE
P5P41T LE 240-pin DDR3 DIMM sockets
1-12
Chapter 1: Product introduction
1.7.2
Memory configurations
You may install 512MB, 1GB, 2GB, and 4GB unbuffered non‑ECC DDR3 DIMMs into the
DIMM sockets.
• Always install DIMMs with the same CAS latency. For optimum compatibility, it is
recommended that you obtain memory modules from the same vendor.
• Due to the memory address limitation on 32-bit Windows® OS, when you install 4GB
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
following:
-��������������������������������������������������������������������
Use a maximum of 3GB system memory if you are using a 32-bit Windows® OS.
-
Install a 64-bit �������
Windows® OS when you want to install 4GB or more memory on the motherboard.
• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
• 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 efficient cooling system to support a full memory load (2
DIMMs) or overclocking conditions.
P5P41T LE Motherboard Qualified Vendors Lists (QVL)
DDR3-1333 MHz capability
Vendor
Part No.
Size
SS/
DS
Brand
Chip NO.
A-Data
AD31333001GOU
1024MB
SS
A-Data
AD30908C8D-151C E0906
A-Data
AD31333G001GOU
3072MB(Kit of 3)
SS
N/A
Heat-Sink Package
A-Data
AD31333002GOU
2048MB
DS
A-Data
AD30908C8D-151C E0903
A-Data
AD31333G002GMU
2048MB
DS
N/A
Heat-Sink Package
Apacer
78.01GC6.9L0
1024MB
SS
Apacer
AM5D5808AEWSBG0914E
Apacer
78.A1GC6.9L1
2048MB
DS
Apacer
AM5D5808AEWSBG0908D
Corsair
CM3X1024-1333C9DHX
1024MB
SS
N/A
Heat-Sink Package
Corsair
CM3X1024-1333C9
1024MB
SS
N/A
Heat-Sink Package
Corsair
TR3X3G1333C9
3072MB(Kit of 3)
SS
N/A
Heat-Sink Package
Corsair
CM3X1024-1333C9DHX
1024MB
DS
Corsair
Corsair
CM3X2048-1333C9DHX
2048MB
DS
Crucial
CT12864BA1339.8FF
1024MB
Crucial
BL12864TA1336.8SFB1
Crucial
Timing
DIMM
(BIOS)
Voltage
DIMM
Support
A*
B*
•
•
•
•
•
•
•
•
9
•
•
9
•
8-8-8-24
8-8-8-24
1.65-1.85V
•
•
•
•
•
•
Heat-Sink Package
•
•
N/A
Heat-Sink Package
•
•
SS
Micron
9FF22D9KPT
•
•
2048MB(Kit of 2)
SS
N/A
Heat-Sink Package
•
•
CT12864BA1339.8SFD
3072MB(Kit of 3)
SS
Micron
8XD22D9JNM
9
•
•
Crucial
CT25664BA1339.16FF
2048MB
DS
Micron
9KF27D9KPT
9
•
•
Crucial
BL25664ABA1336.16SFB1
4096MB(Kit of 2)
DS
N/A
Heat-Sink Package
6-6-6-20
1.8V
•
•
Crucial
BL25664BA1336.16SFB1
4096MB(Kit of 2)
DS
N/A
Heat-Sink Package
6-6-6-20
1.8V
•
•
Crucial
BL25664BN1337.16FF (XMP) 6144MB(Kit of 3 )
DS
N/A
Heat-Sink Package
7-7-7-24
1.65V
•
•
Crucial
CT25664BA1339.16SFD
DS
Micron
8UD22D9JNM
•
•
6144MB(Kit of 3 )
9-9-9-24
1.65-1.85V
9
1.60V
1.5V
9
6-6-6-20
9
1.8V
(continued on the next page)
ASUS P5P41T LE
1-13
DDR3-1333 MHz capability
Vendor
Part No.
Size
SS/
DS
Brand
Timing
DIMM
(BIOS)
Chip NO.
Voltage
DIMM
Support
A*
B*
G.SKILL
F3-10600CL8D-2GBHK
1024MB
SS
G.SKILL
Heat-Sink Package
•
•
G.SKILL
F3-10600CL9D-2GBPK
1024MB
SS
G.SKILL
Heat-Sink Package
•
•
G.SKILL
F3-10666CL7T-3GBPK
3072MB(Kit of 3)
SS
N/A
Heat-Sink Package
7-7-7-18
1.5~1.6V
•
•
G.SKILL
F3-10666CL9T-3GBNQ
3072MB(Kit of 3)
SS
N/A
Heat-Sink Package
9-9-9-24
1.5~1.6V
•
•
G.SKILL
F3-10600CL7D-2GBPI
1024MB
DS
G.SKILL
Heat-Sink Package
•
•
G.SKILL
F3-10600CL9D-2GBNQ
1024MB
DS
G.SKILL
Heat-Sink Package
•
•
G.SkiLL
F3-10666CL8D-4GBHK
4096MB(Kit of 2 )
DS
N/A
Heat-Sink Package
8-8-8-21
1.5-1.6V
•
•
G.SKILL
F3-10666CL7T-6GBPK
6144MB(Kit of 3 )
DS
N/A
Heat-Sink Package
7-7-7-18
1.5~1.6V
•
•
G.SKILL
F3-10666CL9T-6GBNQ
6144MB(Kit of 3)
DS
N/A
Heat-Sink Package
9-9-9-24
1.5V~1.6V
•
•
GEIL
DDR3-1333 CL9-9-9-24
1024MB
SS
N/A
Heat-Sink Package
9
•
•
GEIL
GV34GB1333C7DC
2048MB
DS
N/A
Heat-Sink Package
7-7-7-24
1.5V
•
•
GEIL
GG34GB1333C9DC
4096MB(Kit of 2)
DS
GEIL
GL1L128M88BA12N
9-9-9-24
1.3V(low
voltage)
•
•
Kingmax
FLFD45F-B8MF9
1024MB
SS
Micron
8HD22D9JNM
•
•
Kingmax
FLFD45F-B8MH9 MAES
1024MB
SS
Micron
9CF22D9KPT
•
•
Kingmax
FLFE85F-B8MF9
2048MB
DS
Micron
8HD22D9JNM
•
•
Kingmax
FLFE85F-B8MH9 MEES
2048MB
DS
Micron
9GF27D9KPT
•
•
Kingston
KVR1333D3N9/1G
1024MB
SS
Elpida
J1108BABG-DJ-E
1.5V ±
0.075V
•
•
Kingston
KVR1333D3N9/2G
2048MB
DS
Qimonda IDSH1G-03A1F1C-13H
1.5V
•
•
Micron
MT8JTF12864AY-1G4D1
1024MB
SS
Micron
8LD22D9JNM
•
•
Micron
MT8JTF12864AZ-1G4F1
1024MB
SS
Micron
9FF22D9KPT
9
•
•
Micron
MT8JTF12864AY-1G4D1
3072MB(Kit of 3)
SS
Micron
8XD22D9JNM
9
•
•
Micron
MT16JTF25664AY-1G1D1
2048MB
DS
Micron
8LD22 D9JNM
•
•
Micron
MT18JTF25664AZ-1G4F1
2048MB
DS
Micron
9KF27D9KPT
9
•
•
Micron
MT16JTF25664AY-1G4D1
6144MB(Kit of 3 )
DS
Micron
8UD22D9JNM
9
•
•
OCZ
OCZ3P13332GK
2048MB(Kit of 2)
SS
N/A
Heat-Sink Package
1.8V
•
•
OCZ
OCZ3X1333LV3GK(XMP)
3072MB(Kit of 3)
SS
N/A
Heat-Sink Package
1.6V
•
•
OCZ
OCZ3G13334GK
4096MB(Kit of 2)
DS
N/A
Heat-Sink Package
1.7V
•
•
OCZ
OCZ3P13334GK
4096MB(Kit of 2)
DS
N/A
Heat-Sink Package
7-7-7-20
1.8V
•
•
OCZ
OCZ3RPX1333EB4GK
4096MB(Kit of 2)
DS
N/A
Heat-Sink Package
6-5-5-20
1.85V
•
•
OCZ
OCZ3X13334GK(XMP)
4096MB(Kit of 2)
DS
N/A
Heat-Sink Package
1.75V
•
•
OCZ
OCZ3G1333LV6GK
6144MB(Kit of 3 )
DS
N/A
Heat-Sink Package
9-9-9-20
1.65V
•
•
OCZ
OCZ3P1333LV6GK
6144MB(Kit of 3 )
DS
N/A
Heat-Sink Package
7-7-7-20
1.65V
•
•
OCZ
OCZ3X1333LV6GK(XMP)
6144MB(Kit of 3 )
DS
N/A
Heat-Sink Package
8-8-8-20
1.60V
•
•
SAMSUNG M378B2873DZ1-CH9
1024MB
SS
Samsung K4B1G0846D-HCH9
•
•
SAMSUNG M378B2873DZ1-CH9
1024MB
SS
Samsung SEC 846 HCH9 K4B1G08460
•
•
SAMSUNG M378B2873EH1-CH9
1024MB
SS
Samsung SEC 913 HCH9 K4B1G0846E
•
•
SAMSUNG M378B5673DZ1-CH9
2048MB
DS
Samsung K4B1G0846D-HCH9
•
•
SAMSUNG M378B5673EH1-CH9
2048MB
DS
Samsung SEC 913 HCH9 K4B1G0846E
•
•
Super
Talent
W1333X2GB8
1024MB
SS
N/A
Heat-Sink Package
•
•
Transcend
TS128MLK64V3U
1024MB
SS
N/A
SEC 813HCH9 K4B1G0846D
•
•
Transcend
TS256MLK64V3U
2048MB
DS
Micron
9GF27D9KPT
•
•
Transcend
TS256MLK64V3U
2048MB
DS
N/A
SEC816HCH9K4B1G0846D
•
•
ASINT
SLY3128M8-EDJ
1024MB
SS
ASINT
DDRII1208-DJ 0844
•
•
ASINT
SLY3128M8-EDJE
1024MB
SS
ELPIDA
J1108BASE-DJ-E
•
•
ASINT
SLY3128M8-EDJ
2048MB
DS
ASINT
DDRII1208-DJ 0844
•
•
ASINT
SLZ3128M8-EDJE
2048MB
DS
ELPIDA
J1108BASE-DJ-E
•
•
9
7-7-7-20
(continued on the next page)
1-14
Chapter 1: Product introduction
DDR3-1333 MHz capability
SS/
DS
Size
Brand
Timing
DIMM
(BIOS)
Chip NO.
DIMM
Support
Vendor
Part No.
Voltage
A*
B*
BUFFALO
FSX1333D3G-K2G
1024MB
SS
N/A
Heat-Sink Package
7-7-7-20
•
•
BUFFALO
FSX1333D3G-2G
2048MB
DS
N/A
Heat-Sink Package
7-7-7-20
•
•
Century
PC3-10600 DDR3-1333 9-9-9 2048MB
DS
Micron
8DD22D9JNM
•
•
Elixir
M2Y2G64CB8HA9N-CG
2048MB
DS
N/A
Heat-Sink Package
•
•
Kingtiger
2GB DIMM PC3-10666
2048MB
DS
Samsung SEC 904 HCH9 K4B1G0846D
•
Kingtiger
KTG2G1333PG3
2048MB
DS
N/A
Heat-Sink Package
•
•
PATRIOT
PSD32G13332H
2048MB
DS
N/A
Heat-Sink Package
•
•
PATRIOT
PDC34G1333ELK
4096MB(Kit of 2 )
DS
N/A
Heat-Sink Package
•
•
SILICON
POWER
SP001GBLTU133S02
1024MB
SS
elixir
N2CB1680AN-C6
9
•
•
SILICON
POWER
SP002GBLTU133S02
2048MB
DS
elixir
N2CB1680AN-C6
9
•
•
TAKEMS
TMS1GB364D081-107EY
1024MB
SS
N/A
Heat-Sink Package
7-7-7-20
1.5V
•
•
TAKEMS
TMS1GB364D081-138EY
1024MB
SS
N/A
Heat-Sink Package
8-8-8-24
1.5V
•
•
TAKEMS
TMS2GB364D081-107EY
2048MB
DS
N/A
Heat-Sink Package
7-7-7-20
1.5V
•
•
TAKEMS
TMS2GB364D081-138EY
2048MB
DS
N/A
Heat-Sink Package
8-8-8-24
1.5V
•
•
7-7-7-20
9-9-9-24
1.5V
DDR3-1066 MHz capability
Vendor
Part No.
Size
SS/
DS
Brand
Timing
DIMM
(BIOS)
Chip NO.
Voltage
DIMM
Support
A*
B*
Crucial
CT12864BA1067.8FF
1024MB
SS Micron
9GF22D9KPT
7
•
•
Crucial
CT25664BA1067.16FF
2048MB
DS Micron
9HF22D9KPT
7
•
•
Elpida
EBJ51UD8BAFA-AC-E
512MB
SS Elpida
J5308BASE-AC-E
•
•
Elpida
EBJ51UD8BAFA-AE-E
512MB
SS Elpida
J5308BASE-AC-E
•
•
Elpida
EBJ11UD8BAFA-AE-E
1024MB
DS Elpida
J5308BASE-AC-E
•
•
Kingston
KVR1066D3N7/1G
1024MB
SS Elpida
J1108BABG-DJ-E
7
1.5V ±
0.075V
•
•
Kingston
KVR1066D3N7/1G
1024MB
SS Elpida
J5308BASE-AE-E S
7
1.5V
•
•
Kingston
KVR1066D3N7/2G
2048MB
DS Elpida
J1108BABG-DJ-E
7
1.5V
•
•
Micron
MT8JTF12864AY-1G1D1
1024MB
SS Micron
8ED22D9JNL
•
•
Micron
MT8JTF12864AZ-1G1F1
1024MB
SS Micron
9GF22D9KPT
•
•
Micron
MT16JTF25664AY-1G1D1
2048MB
DS Micron
8LD22D9JNL
•
•
Micron
MT16JTF25664AZ-1G1F1
2048MB
DS Micron
9HF22D9KPT
7
•
•
OCZ
OCZ3SOE10662GK
2048MB(Kit of 2)
DS N/A
Heat-Sink Package
7-7-7-16
•
•
SAMSUNG
M378B2873EH1-CF8
1024MB
SS Samsung SEC 901 HCF8 K4B1G0846E
•
•
Elixir
M2Y2G64CBHA9N-BE
2048MB
DS N/A
Heat-Sink Package
•
•
Kingtiger
2GB DIMM PC3-8500
2048MB
DS Hynix
H5TQ1G83AFP G7C
•
•
7
7-7-7-20
1.75V
SS - Single-sided / DS - Double - sided
DIMM support:
• A*: Supports one module inserted into any slot as Single-channel memory configuration.
• B*: Supports one pair of modules inserted into the two blue slots as one pair of
Dual-channel memory configuration
Visit the ASUS website at www.asus.com for the latest QVL.
ASUS P5P41T LE
1-15
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.
2
To install a DIMM:
DDR3 DIMM notch
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.
1
1
Unlocked retaining clip
A DDR3 DIMM is keyed with a notch so that it fits in only one direction. DO NOT force a
DIMM into a socket to avoid damaging the DIMM.
3.
Firmly insert the DIMM into the socket
until the retaining clips snap back in place
and the DIMM is properly seated.
3
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 fingers when pressing the
retaining clips. The DIMM might
get damaged when it flips out with
extra force.
1
1
DDR3 DIMM notch
2.
1-16
Remove the DIMM from the socket.
Chapter 1: Product introduction
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 firmly 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
Configuring an expansion card
After installing the expansion card, configure 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, conflicts will arise between the two PCI
groups, making the system unstable and the card inoperable.
1.8.3
PCI slots
1.8.4
PCI Express x1 slots
1.8.5
PCI Express x16 slot
The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that
comply with PCI specifications.
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specifications.
This motherboard supports a PCI Express x16 graphics card that complies with the PCI
Express specifications.
ASUS P5P41T LE
1-17
1.9
1.
Jumpers
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.
CLRTC
P5P41T LE
1
2
2
3
Normal
(Default)
Clear RTC
P5P41T LE Clear RTC RAM
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3
for about 5-10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter
data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
• If the steps above do not help, remove the onboard battery and move the jumper again
to clear the CMOS RTC RAM data. After 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.
1-18
Chapter 1: Product introduction
1.10
Connectors
1.10.1
Rear panel connectors
1
2
10
3
9
8
7
4 5
6
1.
PS/2 mouse port (green). This port is for a PS/2 mouse.
2.
Parallel port. This 25-pin port connects a parallel printer, a scanner, or other devices.
3.
LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN)
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
ACT/LINK SPEED
LED
LED
LAN port
4.
Line In port (light blue). This port connects to the tape, CD, DVD player, or other
audio sources.
5.
Line Out port (lime). This port connects to a headphone or a speaker. In 4-channel
and 6-channel configurations, the function of this port becomes Front Speaker Out.
6.
Microphone port (pink). This port connects to a microphone.
Refer to the audio configuration table below for the function of the audio ports in 2, 4, or
6-channel configuration.
Port
Headset 2-channel
4-channel
6-channel
Light Blue
Line In
Rear Speaker Out
Rear Speaker Out
Lime
Line Out
Front Speaker Out
Front Speaker Out
Pink
Mic In
Mic In
Bass/Center
7.
USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are
available for connecting USB 2.0 devices.
8.
USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are
available for connecting USB 2.0 devices.
9.
COM port. This 9-pin COM1 port is for pointing devices or other serial devices.
10. PS/2 Keyboard port (purple). This port is for a PS/2 keyboard.
ASUS P5P41T LE
1-19
1.10.2
1.
Internal connectors
CPU and chassis fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN)
These fan connectors support a cooling fan of 350mA~740mA (8.88W max.) or a total
of 1A~2.22A (26.64W 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. Insufficient air flow inside the
system may damage the motherboard components. These are not jumpers! Do not place
jumper caps on the fan connectors!
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
CPU_FAN
CHA_FAN
GND
+12V
Rotation
P5P41T LE
P5P41T LE fan connectors
Only the 4-pin CPU fan connector supports the ASUS Q-FAN feature.
2.
Digital audio connector (4-1 pin SPDIF_OUT)
SPDIFOUT
GND
P5P41T LE
+5V
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. Connect
the S/PDIF Out module cable to this connector, then install the module to a slot
opening at the back of the system chassis.
SPDIF_OUT
P5P41T LE Digital audio connector
The S/PDIF module is purchased separately.
1-20
Chapter 1: Product introduction
3.
ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
These connectors are for ATX power supply plugs. The power supply plugs are
designed to fit these connectors in only one orientation. Find the proper orientation and
push down firmly until the connectors completely fit.
P5P41T LE
GND
GND
+12V DC
+12V DC
ATX12V
EATXPWR
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
PIN 1
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
PIN 1
P5P41T LE ATX power connectors
• For a fully configured system, we recommend that you use a power supply unit (PSU)
that complies with ATX 12 V Specification 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 configuring 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.
4.
Serial ATA connectors (7-pin SATA1-4)
These connectors are for the Serial ATA signal cables for Serial ATA hard disk drives.
GND
RSATA_RXN1
RSATA_RXP1
GND
RSATA_TXN1
RSATA_TXP1
GND
GND
RSATA_RXN2
RSATA_RXP2
GND
RSATA_TXN2
RSATA_TXP2
GND
SATA3
SATA4
GND
RSATA_RXN4
RSATA_RXP4
GND
RSATA_TXN4
RSATA_TXP4
GND
SATA2
GND
RSATA_RXN3
RSATA_RXP3
GND
RSATA_TXN3
RSATA_TXP3
GND
P5P41T LE
SATA1
P5P41T LE SATA connectors
Install the Windows® XP Service Pack 2 or later version before using Serial ATA.
ASUS P5P41T LE
1-21
5.
Front panel audio connector (10-1 pin AAFP)
NC
AGND
NC
NC
SENSE2_RETUR
GND
PRESENCE#
SENSE1_RETUR
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.
AAFP
HD-audio-compliant
pin definition
MIC2
MICPWR
Line out_R
NC
Line out_L
PIN 1
PORT1 L
PORT1 R
PORT2 R
SENSE_SEND
PORT2 L
PIN 1
P5P41T LE
Legacy AC’97
compliant definition
P5P41T LE Analog front panel connector
• We recommend that you connect a high-definition front panel audio module to this
connector to avail of the motherboard’s high-definition audio capability.
• If you want to connect a high-definition front panel audio module to this connector, set
the Front Panel Type item in the BIOS setup to [HD Audio]. If you want to connect an
AC'97 front panel audio module to this connector, set the item to [AC97]. By default, this
connector is set to [HD Audio]. See section 2.4.3 Chipset for details.
6.
Speaker connector (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.
+5V
GND
GND
Speaker Out
SPEAKER
P5P41T LE
PIN 1
P5P41T LE Speaker Out Connector
1-22
Chapter 1: Product introduction
7.
IDE connector (40-1 pin PRI_IDE)
The onboard IDE connector is for the Ultra DMA 100/66/33 signal cable. There are
three connectors on each Ultra DMA 100/66/33 signal cable: blue, black, and gray.
Connect the blue connector to the motherboard’s IDE connector, then select one of the
following modes to configure your device.
Single device
Drive jumper setting
Mode of device(s)
Cable connector
Cable-Select or Master
-
Black
Master
Black
Slave
Gray
Cable-Select
Two devices
Master
Master
Slave
Slave
Black or gray
• Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA
cable connector. This prevents incorrect insertion when you connect the IDE cable.
• Use the 80-conductor IDE cable for Ultra DMA 100/66/33 IDE devices.
PRI_IDE
PIN1
P5P41T LE
NOTE:Orient the red markings
on the IDE ribbon cable to PIN 1.
P5P41T LE IDE connector
If any device jumper is set as “Cable-Select,” ensure that all other device jumpers have the
same setting.
ASUS P5P41T LE
1-23
8.
System panel connector (10-1 pin F_PANEL)
This connector supports several chassis-mounted functions.
PLED+
PLEDPWR
GND
PWR LED PWR BTN
PIN 1
IDE_LED+
IDE_LEDGround
Reset
F_PANEL
P5P41T LE
HD_LED
RESET
P5P41T LE System panel connector
•
System power LED (2-pin PLED)
•
This 2-pin connector is for the system power LED. Connect the chassis power LED
cable to this connector. The system power LED lights up when you turn on the system
power, and blinks when the system is in sleep mode.
Hard disk drive activity LED (2-pin HDLED)
•
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable
to this connector. The IDE LED lights up or flashes when data is read from or written to
the HDD.
Power/Soft-off button (2-pin PWRBTN)
•
This 2-pin 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.
1-24
Chapter 1: Product introduction
9.
USB connectors (10-1 pin USB56, USB78)
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 specification that supports up to
480 Mbps connection speed.
USB+5V
USB_P8USB_P8+
GND
NC
USB78
USB+5V
USB_P6USB_P6+
GND
NC
USB56
P5P41T LE
USB+5V
USB_P7USB_P7+
GND
PIN 1
USB+5V
USB_P5USB_P5+
GND
PIN 1
P5P41T LE USB2.0 connectors
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB module cable is purchased separately.
ASUS P5P41T LE
1-25
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® XP Service Pack 3 or later version/ Windows® Vista
Service Pack 1 or later version 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.
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 file ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run
the DVD.
1-26
Chapter 1: Product introduction
Chapter 2
BIOS information
2.1
Managing and updating your BIOS
Save a copy of the original motherboard BIOS file to a USB flash disk in case you need to
restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update
utility.
2.1.1
ASUS Update utility
The ASUS Update is a utility that allows you to manage, save, and update the motherboard
BIOS in Windows® environment.
• ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP).
• This utility is available in the support DVD that comes with the motherboard package.
Installing ASUS Update
To install ASUS Update:
1.
Place the support DVD in the optical drive. The Drivers menu appears.
2.
Click the Utilities tab, then click ASUS Update.
3.
Follow the onscreen instructions to complete the installation.
Quit all Windows® applications before you update the BIOS using this utility.
Updating the BIOS
To update the BIOS:
1.
From the Windows® desktop, click Start > Programs > ASUS > ASUSUpdate >
ASUSUpdate to launch the ASUS Update utility.
2.
From the dropdown list, select any of the updating process:
ASUS P5P41T LE
2-1
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 traffic, 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 file, then click Next.
b.
Locate the BIOS file 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.
To update the BIOS using EZ Flash 2:
1.
Insert the USB flash disk that contains the latest BIOS file to the USB port, then launch
EZ Flash 2 in any of these two ways:
•
•
Press <Alt> + <F2> during POST.
Enter the BIOS setup program. Go to the Tools menu to select EZ Flash 2 and
press <Enter> to enable it.
Press <Tab> to switch between drives until the correct BIOS file is found.
ASUSTek EZ Flash 2 BIOS ROM Utility V3.36
FLASH TYPE: MXIC 25L8005
Current ROM
BOARD: P5P41T LE
VER: 0201
DATE: 07/22/2009
Update ROM
BOARD: Unknown
VER: Unknown
DATE: Unknown
PATH: A:\
A:
Note
[Enter] Select or Load
[Up/Down/Home/End] Move
2-2
[Tab] Switch
[B] Backup
[V] Drive Info
[ESC] Exit
Chapter 2: BIOS information
2.
When the correct BIOS file is found, EZ Flash 2 performs the BIOS update process
and automatically reboots the system when done.
• Only a USB flash 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
The ASUS CrashFree BIOS is an auto recovery tool that allows you to restore the BIOS file
when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS
file using the motherboard support DVD or a removable device that contains the updated
BIOS file.
• Before using this utility, rename the BIOS file in the removable device into
P5P41TLE.ROM.
• The BIOS file in the support DVD may not be the latest version. Download the latest
BIOS file from the ASUS website at www.asus.com.
• The removable device that ASUS CrashFree BIOS support vary with motherboard
models. For motherboards without the floppy connector, prepare a USB flash disk before
using this utility.
Recovering the BIOS
To recover the BIOS:
1.
Turn on the system.
2.
Insert the support DVD to the optical drive or the removable device that contains the
BIOS file to the USB port or to the floppy disk drive, if supported.
3.
The utility automatically checks the devices for the BIOS file. When found, the utility
reads the BIOS file and starts flashing the corrupted BIOS file.
4.
Turn off the system after the utility completes the updating process and turn on again.
DO NOT shut down or reset the system while updating the BIOS! Doing so can cause
system boot failure!
Ensure to load the BIOS default settings to ensure system compatibility and stability. Select
the Load Setup Defaults item under the Exit menu. Refer to section 2.8 Exit Menu for
details.
ASUS P5P41T LE
2-3
2.2
BIOS setup program
Use the BIOS Setup program to update the BIOS or configure its parameters. The BIOS
screens include navigation keys and brief online help to guide you in using the BIOS Setup
program.
Entering BIOS Setup at startup
To enter BIOS Setup at startup:
• Press <Delete> during the Power-On Self Test (POST). If you do not press <Delete>,
POST continues with its routines.
Entering BIOS Setup after POST
To enter BIOS Setup after POST:
• Press <Ctrl>+<Alt>+<Del> simultaneously.
•
Press the reset button on the system chassis.
•
Press the power button to turn the system off then back on. Do this option only if you
failed to enter BIOS Setup using the first two options.
Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force
reset from a running operating system can cause damage to your data or system. We
recommend to always shut down the system properly from the operating system.
• The default BIOS settings for this motherboard apply for most conditions to ensure
optimum performance. If the system becomes unstable after changing any BIOS
settings, load the default settings to ensure system compatibility and stability. Select the
Load Setups Default item under the Exit Menu. See section 2.8 Exit Menu.
• The BIOS setup screens shown in this section are for reference purposes only, and may
not exactly match what you see on your screen.
• Visit the ASUS website at www.asus.com to download the latest BIOS file for this
motherboard.
2.2.1
BIOS menu screen
Menu items
Main
Menu bar
Advanced
Power
System Time
System Date
Primary IDE Master
Primary IDE Slave
SATA 1
SATA 2
SATA 3
SATA 4
Storage Configuration
System Information
Configuration fields
General help
BIOS SETUP UTILITY
Boot
Tools
Exit
[00:31:48]
[Tue 06/02/2009]
:[Not
:[Not
:[Not
:[Not
:[Not
:[Not
Detected]
Detected]
Detected]
Detected]
Detected]
Detected]
Use [ENTER], [TAB] or
[SHIFT-TAB] to select
a field.
Use [+] or [-] to
configure system Time.
+-
Tab
F1
F10
ESC
Select Screen
Select Item
Change Field
Select Field
General Help
Save and Exit
Exit
v02.58 (C)Copyright 1985-2009, American Megatrends, Inc.
Submenu items
2-4
Navigation keys
Chapter 2: BIOS information
2.2.2
Menu bar
The menu bar on top of the screen has the following main items:
Main
For changing the basic system configuration.
Advanced
For changing the advanced system settings.
Power
For changing the advanced power management (APM)
configuration.
Boot
For changing the system boot configuration.
Tools
For configuring 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.
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
2.2.5
Submenu items
2.2.6
Configuration fields
The highlighted item on the menu bar displays the specific items for that menu. For example,
selecting Main shows the Main menu items.
The other items (Advanced, Power, Boot, Tools, and Exit) on the menu bar have their
respective menu 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>.
These fields show the values for the menu items. If an item is user- configurable, you can
change the value of the field opposite the item. You cannot select an item that is not userconfigurable.A configurable field is enclosed in brackets, and is highlighted when selected. To
change the value of a field, select it then press <Enter> to display a list of options. Refer to
2.2.7 Pop-up window.
ASUS P5P41T LE
2-5
2.2.7
Pop-up window
Select a menu item then press
<Enter> to display a pop-up
window with the configuration
options for that item.
2.2.8
Advanced
Power
Suspend Mode
ACPI 2.0 Support
ACPI APIC support
APM Configuration
Hardware Monitor
BIOS SETUP UTILITY
Boot
Tools
Exit
Use [ENTER], [TAB] or
[SHIFT-TAB] to select
a field.
[Auto]
[Disabled]
Options
[Enabled]
Disabled
Enabled
Use [+] or [-] to
configure system
Time.
Scroll bar
A scroll bar appears on the right
side of a menu screen when there
are items that do not fit on the
screen. Press the <Up> / <Down>
arrow keys or <Page Up> /<Page
Down> keys to display the other
items on the screen.
2.2.9
Main
+-
Tab
F1
F10
ESC
Select Screen
Select Item
Change Field
Select Field
General Help
Save and Exit
Exit
v02.58 (C)Copyright 1985-2009, American, American Megatrends, Inc.
Pop-up window
Scroll bar
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
Advanced
Power
BIOS SETUP UTILITY
Boot
Tools
Exit
System Time
System Date
Primary IDE Master
Primary IDE Slave
SATA 1
SATA 2
SATA 3
SATA 4
[00:31:48]
[Tue 04/21/2009]
:[Not
:[Not
:[Not
:[Not
:[Not
:[Not
Detected]
Detected]
Detected]
Detected]
Detected]
Detected]
Use [ENTER], [TAB] or
[SHIFT-TAB] to select
a field.
Use [+] or [-] to
configure system time.
Storage Configuration
System Information
+-
Tab
F1
F10
ESC
Select Screen
Select Item
Change Field
Select Field
General Help
Save and Exit
Exit
v02.58 (C)Copyright 1985-2009, American Megatrends, Inc.
2.3.1
System Time [xx:xx:xx]
2.3.2
System Date [Day xx/xx/xxxx]
2.3.3
Primary IDE Master/Slave and SATA 1-4
Allows you to set the system time.
Allows you to set the system date.
While entering Setup, the BIOS automatically detects the presence of IDE/SATA devices.
There is a separate sub-menu for each IDE/SATA device. Select a device item then press
<Enter> to display the IDE/SATA device information.
The BIOS automatically detects the values opposite the dimmed items (Device, Vendor, Size,
LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART Monitoring). These
values are not user-configurable. These items show Not Detected if no IDE/ Serial ATA
device is installed in the system.
Type [Auto]
Selects the type of IDE drive. Setting to [Auto] allows automatic selection of the appropriate
IDE device type. Select [CDROM] if you are specifically configuring a CD-ROM drive. Select
[ARMD] (ATAPI Removable Media Device) if your device is either a ZIP, LS-120, or MO drive.
Configuration options: [Not Installed] [Auto] [CDROM] [ARMD]
This item does not appear if you select SATA 1/2/3/4 devices.
ASUS P5P41T LE
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.
Configuration options: [Disabled] [Auto]
Block (Multi-sector Transfer) M [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. Configuration options: [Disabled] [Auto]
PIO Mode [Auto]
Selects the PIO mode. Configuration options: [Auto] [0] [1] [2] [3] [4]
DMA Mode [Auto]
Selects the DMA mode. Configuration options: [Auto]
SMART Monitoring [Auto]
Sets the Smart Monitoring, Analysis, and Reporting Technology.
Configuration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Enabled]
Enables or disables 32-bit data transfer. Configuration options: [Disabled] [Enabled]
2.3.4
Storage Configuration
The items in this menu allow you to set or change the configurations for the SATA devices
installed in the system. Select an item then press <Enter> if you want to configure the item.
ATA/IDE Configuration [Enhanced]
Allows you to set the ATA/IDE configuration. Configuration options: [Disabled] [Compatible]
[Enhanced]
The following item appears only when you set the ATA/IDE Configuration item to
[Enhanced].
Enhanced Mode Support On [S-ATA]
Configuration options: [S-ATA+P-ATA] [S-ATA] [P-ATA]
The following item appears only when you set the ATA/IDE Configuration item to
[Compitable].
Legacy IDE Channels [PATA Pri, SATA Sec]
Configuration options: [SATA Only] [PATA Pri, SATA Sec] [PATA Only]
IDE Detect Time Out (Sec) [35]
Selects the time out value for detecting ATA/ATAPI devices.
Configuration options: [0] [5] [10] [15] [20] [25] [30] [35]
2-8
Chapter 2: BIOS information
2.3.5
System Information
This menu gives you an overview of the general system specifications. The BIOS
automatically detects the items in this menu.
Bios Information
Displays the auto-detected BIOS information.
Processor
Displays the auto-detected CPU specification.
System Memory
Displays the auto-detected system memory.
2.4
Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system
devices.
Take caution when changing the settings of the Advanced menu items. Incorrect field
values can cause the system to malfunction.
Main
Advanced
Power
BIOS SETUP UTILITY
Boot
Tools
Exit
JumperFree Configuration
CPU Configuration
Chipset
Onboard Devices Configuration
USB Configuration
PCIPnP
2.4.1
Adjust System
frequency/voltage.
JumperFree Configuration
The items in this menu allow you to adjust the system frequency/voltage.
AI Overclocking [Auto]
Allows selection of CPU overclocking options to achieve desired CPU internal frequency.
Select either one of the preset overclocking configuration options:
Manual - allows you to individually set overclocking parameters.
Auto - loads the optimal settings for the system.
Overclock Profile - loads overclocking profiles with optimal parameters for stability
when overclocking.
ASUS P5P41T LE
2-9
The following items appear only when you set the AI Overclocking item to [Manual].
CPU 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. Use the <+> and <-> keys to adjust
the CPU frequency. You can also type 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 1333
333 MHz
FSB 1066
266 MHz
FSB 800
200 MHz
PCI Express Frequency [xxx]
Allows you to adjust the PCI Express frequency. The values range from 90 to 150.
The following item appears only when you set the AI Overclocking item to [Overclock
Profile].
Overclock Options [Overclock 5%]
Allows you to select the overclock options. Configuration options: [Overclock 5%]
[Overclock 10%] [Overclock 15%] [Overclock 20%] [Test Mode]
DRAM Frequency [Auto]
Allows you to set the DDR3 operating frequency. Configuration options: [Auto]
[800 MHz] [1067MHz] [1333MHz]
• The configuration options vary with different CPUs.
• The following table shows the DRAM Frequency options that appear when the FSB
value is 1333, 1066, and 800.
FSB
DRAM Frequency
Auto
800MHz
1066MHz
1333MHz
1333
v
v
v
v
1066
v
v
v
800
v
v
Selecting a very high DRAM frequency may cause the system to become unstable! If this
happens, revert to the default setting.
Memory Voltage [Auto]
Allows you to adjust Memory Over voltage and each step is 0.02000V. Valid value is from
1.21000V to 2.47000V.
2-10
Chapter 2: BIOS information
NB Over Voltage [Auto]
Manually set Northbridge chipset over voltage and each step is 6.25mv. Press <+> / <-> to
adjust the value. Valid value is from 1.12500V to 1.51875V.
CPU VTT [1.2V]
Allows you to adjust CPU VTT over voltage and each step is 6.25mv. Valid value is from
1.20000V to 1.59375V.
SB 1.5V Voltage [1.5V]
Manually set Southbridge Chipset Voltage. Configuration options: [1.5V] [1.6V]
Setting a very high voltage may damage the component permanently, and setting a very
low voltage may cause the system to become unstable.
Auto PSI [Enabled]
Allows you to eanable or disable the Auto PSI mode.
Configuration options: [Disabled] [Enabled]
2.4.2
CPU Configuration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
Ratio CMOS Setting [Auto]
Sets the ratio between CPU core clock and the FSB frequency. Press <+> / <-> to adjust the
value.
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. Configuration 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. Configuration options: [Disabled] [Enabled]
Intel® Virtualization Tech [Enabled]
Enables or disables Intel® Virtualization Technology. Virtualization enhanced by Intel®
Virtualization Technology allows a platform to run multiple operating systems and applications
in independent partitons. With virtualization, one computer system can function as multiple
virtual systems. Configuration options: [Enabled] [Disabled]
CPU TM function [Enabled]
Enables or disables Intel® CPU Thermal Monitor (TM) function, a CPU overheating
protection function. When enabled, the CPU core frequency and voltage are reduced when
the CPU overheats. Configuration options: [Disabled] [Enabled]
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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 flag to always return to zero (0). Configuration
options: [Disabled] [Enabled]
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. Configuration options: [Enabled]
[Disabled]
2.4.3
Chipset
The Chipset menu allows you to change the advanced chipset settings. Select an item then
press <Enter> to display the submenu.
North Bridge Configuration
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.
Configuration options: [Disabled] [Enabled]
Configure DRAM Timing by SPD [Enabled]
Allows you to enable or disable configuring the DRAM Timing by SPD.
Configuration options: [Enabled] [Disabled]
Initiate Graphic Adapter [PEG/PCI]
Allows you to decide which graphics controller to use as the primary boot device.
Configuration options: [PEG/PCI] [PCI/PEG]
South Bridge Configuration
Audio Controller [Enabled]
Allows you to set the audio controller. Configuration options: [Enabled] [Disabled]
Front Panel Type [HD Audio]
Allows you to select the front panel support type. If High Definition Audio Front Panel
used, please set HD Audio mode. Configuration options: [AC97] [HD Audio]
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Chapter 2: BIOS information
2.4.4
Onboard Devices Configuration
Onboard Gigabit LAN [Enabled]
Allows you to enable or disable the onboard LAN controller.
Configuration options: [Enabled] [Disabled]
Onboard 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 Gigabit LAN item is set to [Enabled] or [Auto].
Configuration options: [Disabled] [Enabled]
Serial Port1 Address [3F8/IRQ4]
Allows you to select the Serial Port1 base address.
Configuration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]
Parallel Port Address [378]
Allows you to select the Parallel Port base addresses. Configuration options: [Disabled] [378]
[278] [3BC]
Parallel Port Mode [ECP]
Allows you to select the Parallel Port mode.
Configuration options: [Normal] [Bi-Directional] [EPP] [ECP]
ECP Mode DMA Channel [DMA3]
Appears only when the Parallel Port Mode is set to [ECP]. This item allows you to set
the Parallel Port ECP DMA. Configuration options: [DMA0] [DMA1] [DMA3]
EPP Version [1.9]
Appears only when the Parallel Port Mode is set to [EPP].
Configuration options: [1.9] [1.7]
Parallel Port IRQ [IRQ7]
Allows you to select parallel port IRQ. Configuration options: [IRQ5] [IRQ7]
2.4.5
USB Configuration
The items in this menu allows you to change the USB-related features. Select an item then
press <Enter> to display the configuration 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. Configuration options: [Disabled]
[Enabled]
USB 2.0 Controller [Enabled]
Allows you to enable or disable USB 2.0 controller.
Configuration options: [Enabled] [Disabled]
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Legacy USB Support [Auto]
Allows you to enable or disable support for Legacy USB storage devices, including USB flash
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. Configuration options: [Disabled]
[Enabled] [Auto]
USB 2.0 Controller Mode [HiSpeed]
Allows you to configure the USB 2.0 controller in HiSpeed (480Mbps) or Full Speed
(12Mbps). Configuration options: [FullSpeed] [HiSpeed]
The following items may only appear when a USB storage device is plugged.
USB Mass Storage Device Configuration
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. Configuration options: [10 Sec] [20 Sec] [30 Sec] [40 Sec]
Emulation Type [Auto]
Allows you to set the emulation type. Configuration options: [Auto] [Floppy] [Forced FDD]
[Hard Disk] [CDROM]
2.4.6
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 field values
can cause the system to malfunction.
Plug and Play O/S [No]
When set to [No], BIOS configures all the devices in the system. When set to [Yes] and if you
install a Plug and Play operating system, the operating system configures the Plug and Play
devices not required for boot. Configuration options: [No] [Yes]
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Chapter 2: BIOS information
2.5
Power menu
The Power menu items allow you to change the settings for the Advanced Power
Management (APM). Select an item then press <Enter> to display the configuration options.
Main
Advanced
Power
Suspend Mode
ACPI 2.0 Support
ACPI APIC Support
BIOS SETUP UTILITY
Boot
Tools
Exit
[Auto]
[Enabled]
[Enabled]
Select the ACPI state
used for System
Suspend.
APM Configuration
Hardware Monitor
2.5.1
Suspend Mode [Auto]
Allows you to select the Advanced Configuration and Power Interface (ACPI) state to be used
for system suspend. Configuration 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.
2.5.2
ACPI 2.0 Support [Enabled]
2.5.3
ACPI APIC Support [Enabled]
2.5.4
APM Configuration
Allows you to add more tables for Advanced Configuration and Power Interface (ACPI) 2.0
specifications. Configuration options: [Disabled] [Enabled]
Allows you to enable or disable the Advanced Configuration and Power Interface (ACPI)
support in the Application-Specific Integrated Circuit (ASIC). When set to Enabled, the ACPI
APIC table pointer is included in the RSDT pointer list. Configuration options: [Disabled]
[Enabled]
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. Configuration options: [Power Off] [Power On] [Last State]
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. Configuration options: [Disabled] [Enabled]
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Power On By External Modem [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.
Configuration options: [Disabled] [Enabled]
Power On By PCI (E) Device [Disabled]
When set to [Enabled], this parameter allows you to wake the system through a PCI
Express/PCI card. This feature requires an ATX power supply that provides at least 1A on
the +5VSB lead. Configuration options: [Disabled] [Enabled]
Power On By PS/2 Keyboard [Disabled]
Allows you to use specific 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. Configuration options:
[Disabled] [Space Bar] [Ctrl-Esc] [Power Key]
Power On By PS/2 Mouse [Disabled]
When set to [Enabled], this parameter allows you to use the PS/2 mouse to turn on the
system. This feature requires an ATX power supply that provides at least 1A on the +5VSB
lead. Configuration options: [Disabled] [Enabled]
2.5.5
Hardware Monitor
CPU Temperature [xxxºC/xxxºF] or [Ignored]
MB Temperature [xxxºC/xxxºF] or [Ignored]
The onboard hardware monitor automatically detects and displays the motherboard and
CPU temperatures. Select Ignored if you do not 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 field shows
N/A. Select Ignored if you do not wish to display the detected speed.
CPU Q-Fan Control [Disabled]
Enables or disables the Q-Fan control. Configuration options: [Disabled] [Enabled]
Chassis Fan Speed [xxxxRPM] or [Ignored]
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 field shows
N/A. Select Ignored if you do not wish to display the detected speed.
CPU Over 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.
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Chapter 2: BIOS information
2.6
Boot menu
The Boot menu items allow you to change the system boot options. Select an item then
press <Enter> to display the sub-menu.
Main
Advanced
Power
BIOS SETUP UTILITY
Boot
Tools
Exit
Boot Settings
Boot Device Priority
Boot Settings Configuration
Security
2.6.1
Specifies the Boot
Device Priority
sequence.
A virtual drive (Drive
B:) may appear when you
set the CD-ROM drive as
the first boot device.
Boot Device Priority
1st/2nd/3rd 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. Configuration options: [Removable Dev.] [Hard Drive]
[ATAPI CD-ROM] [Disabled]
• To select the boot device suring system startup, press <F8> when ASUS Logo appears.
• To access Windows® OS in Safe Mode, do any of the following:
•
Press <F5> when ASUS Logo appears.
•
Press <F8> after POST.
2.6.2
Boot Settings Configuration
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. Configuration options: [Disabled] [Enabled]
Full Screen Logo [Enabled]
This allows you to enable or disable the full screen logo display feature. Configuration
options: [Disabled] [Enabled]
Set this item to [Enabled] to use the ASUS MyLogo2™ feature.
AddOn ROM Display Mode [Force BIOS]
Sets the display mode for option ROM. Configuration options: [Force BIOS]
[Keep Current]
Bootup Num-Lock [On]
Allows you to select the power-on state for the NumLock.
Configuration options: [Off] [On]
Wait For ‘F1’ If Error [Enabled]
When set to Enabled, the system waits for the F1 key to be pressed when error occurs.
Configuration options: [Disabled] [Enabled]
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Hit ‘DEL’ Message Display [Enabled]
When set to [Enabled], the system displays the message Press DEL to run Setup during
POST. Configuration options: [Disabled] [Enabled]
2.6.3
Security
The Security menu items allow you to change the system security settings. Select an item
then press <Enter> to display the configuration options.
Change Supervisor Password
Select this item to set or change the supervisor password. The Supervisor Password item
on top of the screen shows the default Not Installed. After you set a password, this item
shows Installed.
To set a Supervisor Password:
1.
Select the Change Supervisor Password item and press <Enter>.
2.
On the password box, key in a password containing up to six letters, or numbers, or
both, then press <Enter>.
3.
Confirm the password when prompted.
The message Password Installed appears after you successfully set your password.
To change the supervisor password, follow the same steps in setting a supervisor password.
To clear the supervisor password, select the Change Supervisor Password then press
<Enter> twice. The message Password uninstalled appears.
If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock
(RTC) RAM. See section 1.9 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.
Configuration 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 field.
[Limited] - allows changes only to selected fields, such as Date and Time.
[Full Access] - allows viewing and changing all the fields in the Setup utility.
Change User Password
Select this item to set or change the user password. The User Password item on top of the
screen shows the default Not Installed. After you set a password, this item shows Installed.
To set a User Password:
1.
Select the Change User Password item and press <Enter>.
2.
On the password box, key in a password containing up to six letters, or numbers, or
both, then press <Enter>.
3.
Confirm 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.
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Chapter 2: BIOS information
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. Configuration options: [Setup] [Always]
2.7
Tools menu
The Tools menu items allow you to configure options for special functions. Select an item then
press <Enter> to display the sub-menu.
Main
Advanced
Power
BIOS SETUP UTILITY
Boot
Tools
Exit
ASUS EZ Flash 2
Express Gate
Enter OS Timer
Reset User Data [Auto]
[10 Seconds]
[No]
AI NET 2
2.7.1
ASUS EZ Flash 2
2.7.2
Express Gate [Auto]
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)
Allows you to run ASUS EZ Flash 2. When you press <Enter>, a confirmation message
appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to
confirm your choice. Please see section 2.1.2 for details.
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. Configuration options: [Enabled] [Disabled] [Auto]
Enter OS Timer [10 Seconds]
Sets countdown duration that the system waits at the Express Gate’s first screen
before starting Windows or other installed OS. Choose [Prompt User] to stay at the
first screen of Express Gate for user action. Configuration 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. Configuration options: [No] [Reset]
When setting this item to [Reset], ensure 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 first time wizard will run again when you enter the Express Gate environment after
clearing its settings.
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2.7.3
AI NET 2
Check Atheros LAN cable [Disabled]
Enables or disables checking of the Atheros LAN cable during the Power-On Self‑Test
(POST). Configuration options: [Disabled] [Enabled]
2.8
Exit menu
The Exit menu items allow you to load the optimal or failsafe default values for the BIOS
items, and save or discard your changes to the BIOS items.
Main
Advanced
Power
Exit Options
Exit & Save Changes
Exit & Discard Changes
Discard Changes
Load Setup Defaults
BIOS SETUP UTILITY
Boot
Tools
Exit
Exit system setup
after saving the
cahnges.
F10 key can be used
for this operation.
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 finished 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 confirmation 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 fields other than System Date, System Time, and
Password, the BIOS asks for a confirmation 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 confirmation 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 confirmation 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.
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Chapter 2: BIOS information