Motherboard
P5LD2-C/IPAT
E3609
First Edition
January 2008
Copyright © 2008 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
P5LD2-C/IPAT specifications summary...................................................... x
Chapter 1:
Product introduction
1.1
Welcome!....................................................................................... 1-1
1.3
Special features............................................................................. 1-2
1.2
Package contents.......................................................................... 1-1
Product highlights............................................................................ 1-2
Chapter 2:
2.1
2.2
Motherboard overview.................................................................. 2-2
2.2.1
Placement direction......................................................... 2-2
2.2.3
Motherboard layout.......................................................... 2-3
2.2.2
2.3
2.2.4
Installing the CPU............................................................ 2-5
2.3.3
Uninstalling the CPU heatsink and fan.......................... 2-10
2.4.1
Overview........................................................................ 2-12
2.4.3
Installing a DIMM........................................................... 2-16
2.4.4
Memory configurations................................................... 2-12
Removing a DIMM......................................................... 2-16
Expansion slots........................................................................... 2-17
2.5.1
Installing an expansion card.......................................... 2-17
2.5.3
Interrupt assignments.................................................... 2-18
2.5.4
2.5.5
2.7
Installing the CPU heatsink and fan................................. 2-8
System memory.......................................................................... 2-12
2.5.2
2.6
Layout contents................................................................ 2-4
2.3.1
2.4.2
2.5
Screw holes..................................................................... 2-2
Central Processing Unit (CPU).................................................... 2-5
2.3.2
2.4
Hardware information
Before you proceed...................................................................... 2-1
2.5.6
Configuring an expansion card...................................... 2-17
PCI slots......................................................................... 2-19
PCI Express x16 slot...................................................... 2-19
PCI Express x1 slot........................................................ 2-19
Jumpers....................................................................................... 2-20
Connectors.................................................................................. 2-22
iii
Contents
2.7.1
2.7.2
Chapter 3:
3.1
3.2
3.2.1
BIOS setup
Creating a bootable floppy disk........................................ 4-1
4.1.3
AFUWIN utility.................................................................. 4-5
AFUDOS utility................................................................. 4-2
BIOS setup program..................................................................... 4-6
4.2.1
BIOS menu screen........................................................... 4-7
4.2.3
Navigation keys................................................................ 4-7
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.2.9
Menu bar.......................................................................... 4-7
Menu items...................................................................... 4-8
Sub-menu items............................................................... 4-8
Configuration fields.......................................................... 4-8
Pop-up window................................................................ 4-8
Scroll bar.......................................................................... 4-8
General help.................................................................... 4-8
Main menu..................................................................................... 4-9
4.3.1
BIOS Information............................................................. 4-9
4.3.3
System Date ................................................................... 4-9
4.3.2
4.3.4
Memory Information......................................................... 4-9
System Time ................................................................... 4-9
Advanced menu.......................................................................... 4-10
4.4.1
Pxe Boot Option............................................................. 4-10
4.4.3
CPU Configuration......................................................... 4-12
4.4.2
4.4.4
4.4.5
4.4.6
iv
Using the dual function power switch............................... 3-2
4.1.1
4.2.2
4.4
Using the OS shut down function..................................... 3-2
Managing and updating your BIOS............................................. 4-1
4.1.2
4.3
Powering up
Powering off the computer........................................................... 3-2
Chapter 4:
4.2
Internal connectors........................................................ 2-23
Starting up for the first time......................................................... 3-1
3.2.2
4.1
Rear panel connectors................................................... 2-22
ACPI Settings..................................................................4-11
IDE Configuration........................................................... 4-13
On Board LAN................................................................ 4-14
Other Power On Device................................................. 4-15
Contents
4.4.7
4.5
4.4.8
4.7
4.8
4.5.1
North Bridge................................................................... 4-20
4.5.3
Legacy USB Configuration............................................. 4-22
5.2
2.6.1
2.6.2
2.7.1
2.7.2
Setup Prompt Timeout .................................................. 4-23
Setup Administrator Password....................................... 4-24
User Password............................................................... 4-25
Exit menu..................................................................................... 4-26
Software support
Installing an operating system.................................................... 5-1
Support CD information............................................................... 5-1
5.2.1
Running the support CD.................................................. 5-1
5.2.3
ASUS Contact information............................................... 5-3
5.2.4
Appendix:
A.2
Quiet Boot ..................................................................... 4-23
Security menu............................................................................. 4-24
5.2.2
A.1
South Bridge.................................................................. 4-21
Boot menu................................................................................... 4-23
Chapter 5:
5.1
PCI Subsystem Settings................................................ 4-18
Chipset menu.............................................................................. 4-20
4.5.2
4.6
Super IO Configuration.................................................. 4-16
Drivers menu.................................................................... 5-2
Other information............................................................. 5-3
CPU features
Enhanced Intel SpeedStep® Technology (EIST).........................A-1
A.1.1
A.1.2
System requirements.......................................................A-1
Using the EIST.................................................................A-1
Intel® Hyper-Threading Technology............................................A-2
Using the Hyper-Threading Technology . .......................................A-2
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.
vi
Safety information
Electrical safety
• To prevent electrical shock hazard, disconnect the power cable from the
electrical outlet before relocating the system.
• When adding or removing devices to or from the system, ensure that the
power cables for the devices are unplugged before the signal cables are
connected. If possible, disconnect all power cables from the existing system
before you add a device.
• Before connecting or removing signal cables from the motherboard, ensure
that all power cables are unplugged.
• Seek professional assistance before using an adpater or extension cord.
These devices could interrupt the grounding circuit.
• Make sure that your power supply is set to the correct voltage in your area.
If you are not sure about the voltage of the electrical outlet you are using,
contact your local power company.
• If the power supply is broken, do not try to fix it by yourself. Contact a
qualified service technician or your retailer.
Operation safety
• Before installing the motherboard and adding devices on it, carefully read all
the manuals that came with the package.
• Before using the product, make sure all cables are correctly connected and the
power cables are not damaged. If you detect any damage, contact your dealer
immediately.
• To avoid short circuits, keep paper clips, screws, and staples away from
connectors, slots, sockets and circuitry.
• Avoid dust, humidity, and temperature extremes. Do not place the product in
any area where it may become wet.
• Place the product on a stable surface.
• If you encounter technical problems with the product, contact a qualified
service technician or your retailer.
The symbol of the crossed out wheeled bin indicates that the product (electrical,
electronic equipment, Mercury-containing button cell battery) should not be
placed in municipal waste. Check local regulations for disposal of electronic
products.
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: Hardware information
This chapter lists the hardware setup procedures that you have to perform
when installing system components. It includes description of the switches,
jumpers, and connectors on the motherboard.
•
Chapter 3: Powering up
This chapter describes the power up sequence, the vocal POST messages,
and ways of shutting down the system.
•
Chapter 4: BIOS setup
This chapter tells how to change system settings through the BIOS Setup
menus. Detailed descriptions of the BIOS parameters are also provided.
•
Chapter 5: Software support
This chapter describes the contents of the support CD that comes with the
motherboard package.
•
Appendix: CPU features
The Appendix describes the CPU features that the motherboard supports.
Where to find more information
Refer to the following sources for additional information and for product and
software updates.
viii
1.
ASUS websites
The ASUS website provides updated information on ASUS hardware and
software products. Refer to the ASUS contact information.
2.
Optional documentation
Your product package may include optional documentation, such as warranty
flyers, that may have been added by your dealer. These documents are not
part of the standard package.
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>
Command
Means that you must type the command exactly
as shown, then supply the required item or value
enclosed in brackets.
Example: At the DOS prompt, type the command line:
afudos /i[filename]
afudos /iP5LD2CIPAT.ROM
ix
P5LD2-C/IPAT specifications summary
CPU
LGA775 socket for Intel® CoreTM 2 Duo / CoreTM 2 Extreme / Pentium® D / Pentium® 4 / Celeron® processors
Supports next generation 45nm multi-core CPU
Intel® Hyper-Threading Technology ready
Supports Enhanced Intel SpeedStep® Technology (EIST)
Chipset
Northbridge: Intel® MCH 945GC
Southbridge: Intel® ICH7
Front Side Bus
1066 / 800 / 533 MHz
Memory
2 x 240-pin DIMM sockets support unbuffered non-ECC DDR2 533 / 667 memory modules
Supports up to 4 GB system memory
Expansion slots
1 x PCIe x16 slot for discrete graphic card
1 x PCIe x1 slot
5 x PCI slots
Storage
Intel® ICH7 South Bridge supports:
- 1 x Ultra DMA 100 / 66 / 33
- 4 x Serial ATA 3Gb/s devices
Audio
ALC662 6-channel High Definition Audio CODEC
Supports Jack-detect, Anti Pop Funtion, Multi-Streaming
Compatible with Vista Premium OS
LAN
RTL 8111C PCIe Gb LAN
Rear panel
1 x Parallel port
2 x COM ports
1 x PS/2 keyboard port
1 x PS/2 mouse port
1 x RJ45
4 x USB 2.0/1.1 prots
6-channel Audio I/O ports
Internal connectors
Azalia High Definition Analog Front Panel Audio connector
1 x Chassis Intrusion
1 x 4-pin internal speaker connector
1 x 24-pin EPS12V power connector
1 x 4-pin ATX 12V power connector
2 x USB connectors for 4 additional USB 2.0 ports
1 x CD audio-in connector
1 x CPU fan connector
1 x Chassis fan connector
BIOS features
8 Mb Flash ROM, AMI BIOS, PnP, DMI v2.0, WfM2.0, SMBIOS v2.4, ACPI v3.0
USB
Supports up to 8 USB 2.0 ports (4 ports at mid-board, 4 ports at rear panel)
(continued on the next page)
P5LD2-C/IPAT specifications summary
Menageability
WOL by PME, WOR by PME, WOR
Support CD contents
Drivers
IPAT Application
Accessories
1 x SATA cable
1 x SATA power cable
1 x FDD cable
1 x UltraDMA 100/66 cable
1 x I/O Shield
User’s manual
Form factor
ATX form factor: 12 in x 7.5 in (30.5 cm x 19 cm)
*Specifications are subject to change without notice.
xi
xii
This chapter describes the motherboard
features and the new technologies
it supports.
1
Product
introduction
Chapter summary
1
1.1
Welcome!....................................................................................... 1-1
1.3
Special features............................................................................. 1-2
1.2
Package contents.......................................................................... 1-1
ASUS P5LD2-C/IPAT
1.1
Welcome!
Thank you for buying an ASUS® P5LD2-C/IPAT 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 P5LD2-C/IPAT motherboard
Cables
1 x Floppy disk drive cable
1 x Serial ATA cable
1 x Serial ATA power cable
1 x UltraDMA 100/66 cable
Accessories
I/O shield
Application CDs
ASUS motherboard support CD
IPAT software CD
Documentation
User guide
If any of the above items is damaged or missing, contact your retailer.
ASUS P5LD2-C/IPAT
1-
1.3
Special features
Product highlights
Latest processor technology
The motherboard comes with a 775-pin surface mount Land Grid Array (LGA)
socket designed for the Intel® Prescott, Intel® Smithfield, Intel® Cedarmill, Intel®
Conroe, Intel® Conroe L or Intel® Presler processor in the 775-land package. The
motherboard supports the processors with 1066 / 800 / 533 MHz Front Side Bus
(FSB). The motherboard also supports the Intel® Hyper‑Threading Technology and
Enhanced Intel® SpeedStep Technology (EIST). See pages 2-5, A-1 and A-2 for
details.
Intel® Core™2
This motherboard supports the latest Intel® Core™2 processor in the LGA775
package. With the new Intel® Core™ microarchitecture technology and 1066 /
800 / 533 MHz FSB, Intel® Core™2 processor is one of the most powerful and
energy efficient CPU in the world.
64-bit CPU support
64-bit computing, the next generation technology to replace current 32-bit
architecture, delivers advanced system performance, faster memory access and
increased productivity. This motherboard provides excellent compatibility and
flexibility by supporting either 64-bit or 32-bit architecture.
DDR2 memory support
The motherboard supports DDR2 memory that features data transfer rates of 667 /
533 MHz to meet the higher bandwidth requirements of the latest 3D graphics,
multimedia, and Internet applications. The dual-channel DDR2 architecture
doubles the bandwidth of your system memory to boost system performance,
eliminating bottlenecks with peak bandwidths of up to 10.6 GB/s. See page 2-11
for details.
1-
Chapter 1: Product introduction
High Definition Audio
The onboard 6-channel ALC662 High Definition audio CODEC enables high-quality
audio which automatically detects peripherals are plugged into the audio I/O jacks.
ALC662 also supports Windows® Vista Premium. See pages 2-22 for details.
Serial ATA 3.0 Gb/s technology
This motherboard supports the next-generation hard drives based on the Serial
ATA (SATA) 3Gb/s storage specification, delivering enhanced scalability and
doubling the bus bandwidth for high-speed data retrieval and saves. Easily backup
photos, videos and other entertainment contents to external devices. See page
2‑25 for details.
PCI Express™ interface
The motherboard fully supports PCI Express, the latest I/O interconnect technology
that speeds up the PCI bus. PCI Express features point‑to­‑point serial
interconnections between devices and allows higher clockspeeds by carrying data
in packets. This high speed interface is software compatible with existing PCI
specifications. See page 2-19 for details.
USB 2.0 technology
The motherboard implements the Universal Serial Bus (USB) 2.0 specification,
dramatically increasing the connection speed from the 12 Mbps bandwidth on USB
1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is backward compatible with USB 1.1.
See pages 2-23 and 2-26 for details.
Green ASUS
The 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 and packaging to
safeguard consumers’ health while minimizing the impact on the environment.
ASUS P5LD2-C/IPAT
1-
1-
Chapter 1: Product introduction
This chapter lists the hardware setup
procedures that you have to perform
when installing system components. It
includes description of the jumpers and
connectors on the motherboard.
2
Hardware
information
Chapter summary
2
2.1
Before you proceed...................................................................... 2-1
2.3
Central Processing Unit (CPU).................................................... 2-5
2.2
2.4
Motherboard overview.................................................................. 2-2
System memory.......................................................................... 2-12
2.5
Expansion slots........................................................................... 2-17
2.7
Connectors.................................................................................. 2-22
2.6
Jumpers....................................................................................... 2-20
ASUS P5LD2-C/IPAT
2.1
Before you proceed
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
•
Unplug the power cord from the wall socket before touching any
component.
•
Use a grounded wrist strap or touch a safely grounded object or to
a metal object, such as the power supply case, before handling
components to avoid damaging them due to static electricity.
•
Hold components by the edges to avoid touching the ICs on them.
•
Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.
•
Before you install or remove any component, 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, and/or components.
Onboard LED
P5LD2-C/IPAT
The motherboard comes with a standby power LED. The green LED lights up
to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a
reminder that you should shut down the system and unplug the power cable before
removing or plugging in any motherboard component. The illustration below shows
the location of the onboard LED.
SB_PWR
ON
Standby
Power
OFF
Powered
Off
P5LD2-C/IPAT Onboard LED
ASUS P5LD2-C/IPAT
2-
2.2
Motherboard overview
Before you install the motherboard, study the configuration of your chassis to
ensure that the motherboard fits into it.
Ensure to unplug the power cord before installing or removing the motherboard.
Failure to do so can cause you physical injury and damage motherboard
components.
2.2.1
Placement direction
When installing the motherboard, ensure that you place it into the chassis in
the correct orientation. The edge with external ports goes to the rear part of the
chassis as indicated in the image below.
2.2.2
Screw holes
Place seven (7) screws into the holes indicated by circles to secure the
motherboard to the chassis.
Place this side towards
the rear of the chassis
2-
P5LD2-C/IPAT
Do not overtighten the screws! Doing so can damage the motherboard.
Chapter 2: Hardware information
2.2.3
Motherboard layout
19cm (7.5in)
PS/2KBMS
T: Mouse
B: Keyboard
ATX12V
COM1
Realtek
8111C
CR2032 3V
Lithium Cell
CMOS Power
30.5cm (12in)
PCIEX1_1
EATXPWR
RTM876-660
DDR2 DIMM_B1 (64 bit,240-pin module)
Intel 945GC
AUDIO
P5LD2-C/IPAT
LAN_USB12
CHA_FAN
USB34
CPU_FAN
PS2_USBPW1-8
COM2
DDR2 DIMM_A1 (64 bit,240-pin module)
PARALLE PORT
LGA775
PCIEX16
Super I/O
PCI1
PCI2
Intel ICH7
PCI4
8Mb
BIOS
ALC662
SATA1
SATA2
SATA3
SATA4
PCI5
CD
AAFP
ASUS P5LD2-C/IPAT
PRI_IDE
PCI3
CLRTC
CHASSIS
SPEAKER
FLOPPY
USB56
USB78
SB_PWR
F_PANEL
2-
2.2.4
2-
Layout contents
Slots
Page
1. PCI
2-19
2. PCIe x 16
2-19
3. PCIe x 1
2-19
Jumpers
Page
1. Clear RTC RAM (3-pin CLRTC)
2-20
2. USB Device wake-up (3-pin PS2_USBPW1-8)
2-21
Rear panel connectors
Page
1. PS/2 mouse port (green)
2-22
2. Parallel port
2-22
3. LAN (RJ-45) port
2-22
4. Line In port (light blue)
2-22
5. Line Out port (green)
2-22
6. Microphone port (pink)
2-22
7. USB 2.0 ports 1 and 2
2-23
8. USB 2.0 ports 3 and 4
2-23
9. Serial port (COM2)
2-23
10. Serial port (COM1)
2-23
11. PS/2 keyboard port (purple)
2-23
Internal connectors
Page
1. Floppy disk drive connector (34-1 pin FLOPPY)
2-23
2. ICH7 Primary IDE connector (40-1 pin PRI_IDE)
2-24
3. Optical drive audio connector (4-pin CD)
2-24
4. Serial ATA connectors (7-pin SATA1 [red], SATA2 [red], SATA3 [black],
SATA4 [black])
2-25
5. Front panel audio connector (10-1 pin AAFP)
2-26
6. USB connectors (10-1 pin USB56, USB78)
2-26
7. CPU and Chassis Fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN)
2-27
8. Chassis intrusion connector (4-1 pin CHASSIS)
2-27
9. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
2-28
10. Speaker connector (4-pin SPEAKER)
2-28
11. System panel connector (10-1 pin F_PANEL)
2-29
Chapter 2: Hardware information
2.3
Central Processing Unit (CPU)
The motherboard comes with a surface mount LGA775 socket designed for the
Intel® CoreTM 2 Duo / CoreTM 2 Extreme / Pentium® D / Pentium® 4 / Celeron® processor in
the 775-land package
•
•
•
2.3.1
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.
Installing the CPU
To install a CPU:
Locate the CPU socket on the motherboard.
P5LD2-C/IPAT
1.
P5LD2-C/IPAT 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 P5LD2-C/IPAT
2-
2.
Press the load lever with your thumb (A), then move it to the left (B) until it is
released from the retention tab.
Retention tab
Load lever
A
PnP cap
B
This side of the socket
box should face you.
To prevent damage to the socket pins, do not remove the PnP cap unless you
are installing a CPU.
3.
Lift the load lever in the direction of
the arrow to a 135º angle.
4.
Lift the load plate with your thumb
and forefinger to a 100º angle (A),
then push the PnP cap from the load
plate window to remove (B).
B
A
Load plate
5.
Position the CPU over
the socket, ensuring that
the gold triangle is on
the bottom-left corner of
the socket. The socket
alignment key should fit
into the CPU notch.
Alignment key
Gold triangle mark
2-
Chapter 2: Hardware information
The CPU fits in only one correct orientation. DO NOT force the CPU into the
socket to prevent bending the connectors on the socket and damaging the CPU!
6.
Close the load plate (A), then
push the load lever (B) until it
snaps into the retention tab.
A
B
The motherboard supports Intel® CoreTM 2 Duo / CoreTM 2 Extreme / Pentium®
D / Pentium® 4 / Celeron® LGA775 processors with the Intel® Enhanced Intel
SpeedStep® Technology (EIST) and Hyper-Threading Technology. Refer to the
Appendix for more information on these CPU features.
ASUS P5LD2-C/IPAT
2-
2.3.2
Installing the CPU heatsink and fan
The Intel® CoreTM 2 Duo / CoreTM 2 Extreme / Pentium® D / Pentium® 4 / Celeron®
LGA775 processor requires a specially designed heatsink and fan assembly to
ensure optimum thermal condition and performance.
•
When you buy a boxed Intel® CoreTM 2 Duo / CoreTM 2 Extreme / Pentium®
D / Pentium® 4 / Celeron® 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® CoreTM 2 Duo / CoreTM 2 Extreme / Pentium® D / Pentium® 4 /
Celeron® 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.
Orient the heatsink and fan
assembly such that the CPU
fan cable is closest to the CPU
fan connector.
Motherboard hole
Narrow end
of the groove
Fastener
Ensure to orient each fastener with the narrow end of the groove pointing
outward. (The photo shows the groove shaded for emphasis.)
2-
Chapter 2: Hardware information
2.
Push down two fasteners at a time in
a diagonal sequence to secure the
heatsink and fan assembly in place.
B
A
A
3.
A
B
B
A
B
Connect the CPU fan cable to the connector on the motherboard labeled
CPU_FAN.
P5LD2-C/IPAT
CPU_FAN
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
P5LD2-C/IPAT CPU Fan Connector
Do not forget to connect the CPU fan connector! Hardware monitoring errors
can occur if you fail to plug this connector.
ASUS P5LD2-C/IPAT
2-
2.3.3
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.
4.
2-10
A
B
B
A
B
A
A
B
Carefully remove the heatsink
and fan assembly from the
motherboard.
Chapter 2: Hardware information
5.
Rotate each fastener clockwise to
ensure correct orientation when
reinstalling.
Narrow end of the groove
The narrow end of the groove
should point outward after
resetting. (The photo shows the
groove shaded for emphasis.)
Refer to the documentation in the boxed or stand-alone CPU fan package for
detailed information on CPU fan installation.
ASUS P5LD2-C/IPAT
2-11
2.4
System memory
2.4.1
Overview
The motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory
Modules (DIMM) sockets.
128 Pins
P5LD2-C/IPAT
112 Pins
DIMM_A1
DIMM_B1
The figure illustrates the location of the DDR2 DIMM sockets:
P5LD2-C/IPAT Fan Connectors
2.4.2
Channel
Sockets
Channel A
DIMM_A1
Channel B
DIMM_B1
Memory configurations
You may install 128 MB, 256 MB, 512 MB , and 1024 MB unbuffered non-ECC
DDR2 DIMMs into the DIMM sockets.
2-12
•
You may install varying memory sizes in Channel A and Channel B. The
system maps the total size of the lower-sized channel for the dual-channel
configuration. Any excess memory from the higher-sized channel is then
mapped for single-channel operation.
•
Always install DIMMs with the same CAS latency. For optimum
compatibility, it is recommended that you obtain memory modules from the
same vendor. Refer to the DDR2 Qualified Vendors List on the next page
for details.
•
If you are using a Windows 32-bit version operating system (e.g. 32-bit
Windows, 32-bit Vista) without the Physical Address Extension (PAE)
support, the system will allocate a certain amount of memory space for
system devices.
•
This motherboard does not support memory modules made up of 128 Mb
chips or double sided x16 memory modules.
Chapter 2: Hardware information
Qualified Vendors Lists (QVL)
DDR2-533
Size
Vendor
Model
CL
Brand
SS/
DS
Component
DIMM support
A*
B*
256MB
Kingston
KVR533D2N4/256
N/A
Elpida
SS
E5116AF-5C-E
•
•
512MB
Kingston
KVR533D2N4/512
N/A
Infineon
SS
HYB18T512800AF3733336550
•
•
1G
Kingston
KVR533D2N4/1G
N/A
Kingston
DS
D6408TLRAGL37U
•
•
256MB
Samsung
M378T3253FG0-CD5
N/A
Samsung
SS
K4T56083QF-GCD5
•
•
512MB
Samsung
M378T6553BG0-CD5
4
Samsung
SS
K4T51083QB-GCD5
•
•
256MB
HY
HYMP532U64CP6-C4 AB
4
Hynix
SS
HY5PS121621CFP-C4
•
•
1G
HY
HYMP512U64CP8-C4 AB
4
Hynix
DS
HY5PS12821CFP-C4
•
•
512MB
Micron
MT 16HTF6464AG-53EB2
4
Micron
DS
D9BOM
•
•
512MB
Micron
MT 16HTF6464AG-53EB2
4
Micron
DS
Z9BQT
•
•
1G
Micron
MT 16HTF12864AY-53EA1
4
Micron
DS
D9CRZ
•
•
512MB
Corsair
VS512MB533D2
N/A
Corsair
DS
MIII0052532M8CEC
•
•
512MB
Corsair
VS512MB533D2
N/A
Corsair
DS
MI110052532M8CEC
•
•
1G
Corsair
VS1GB533D2
N/A
Corsair
DS
64M8CFEGQIB0900718
•
•
512MB
Elpida
EBE51UD8ABFA-5C-E
N/A
Elpida
SS
E5108AB-5C-E
•
•
512MB
Kingmax
KLBC28F-A8KB4
N/A
Kingmax
SS
KKEA88B4IAK-37
•
•
256MB
Kingmax
KLBB68F-36EP4
N/A
Elpida
SS
E5116AB-5C-E
•
•
512MB
Kingmax
KLBC28F-A8EB4
N/A
Elpida
SS
E5108AE-5C-E
•
•
512MB
ADATA
M2OAD2G3H3166I1B52
N/A
ADATA
SS
AD29608A8A-37DG20719
•
•
2G
ADATA
M20AD2H3J4170I1B53
N/A
ADATA
DS
AD20908A8A-37DG30721
•
•
(continued on the next page)
ASUS P5LD2-C/IPAT
2-13
Qualified Vendors Lists (QVL)
DDR2-667
Size
Vendor
256MB
Kingston
256MB
Model
CL
Brand
SS/
DS
Component
DIMM support
A*
B*
KVR667D2N5/256
N/A
Kingston
SS
D3216TLSAKL3U
•
•
Kingston
KVR667D2N5/256
N/A
Infineon
SS
HYB18T256800AF3SW65 33154
•
•
512MB
Kingston
KVR667D2N5/512
N/A
Elpida
SS
E5108AGBG-6E-E
•
•
1G
Kingston
KVR667D2N5/1G
N/A
Kingston
DS
D6408TEBGGL3U
•
•
1G
Kingston
KVR667D2N5/1G
N/A
Elpida
DS
E5108AGBG-6E-E
•
•
2G
Kingston
KVR667D2N5/2G
N/A
Micron
DS
7RE22 D9HNL
•
•
512MB
Samsung
KR M378T6553CZ0-CE6
N/A
Samsung
SS
K4T51083QC
•
•
512MB
Samsung
KR M378T6453FZ0-CE6
N/A
Samsung
DS
K4T56083QF-ZCE6
•
•
512MB
Samsung
M378T6553CZ3-CE6
N/A
Samsung
SS
K4T51083QC-ZCE6
•
•
1G
Samsung
M378T2953CZ3-CE6
N/A
Samsung
DS
K4T51083QC-ZCE6
•
•
1G
Samsung
KR M378T2953CZ0-CE6
N/A
Samsung
DS
K4T51083QC-ZCE6
•
•
512MB
Qimonda
HYS64T64000EU-3S-B2
5
Qimonda
SS
HYB18T512B00B2F3SFSS28171
•
•
1G
Qimonda
HYS64T128020EU-3S-B2
5
Qimonda
DS
HYB18T512B00B2F3SFSS28171
•
•
2G
Qimonda
HYS64T256020EU-3S-B
5
Qimonda
DS
HTB18T1G800BF-3S3VV10907
•
•
512MB
Corsair
VS512MB667D2
N/A
Corsair
SS
64M8CFEGPS0900647
•
•
512MB
Corsair
VS512MB667D2
N/A
Corsair
DS
MIII0052532M8CEC
•
•
1G
Corsair
VS1GB667D2
N/A
Corsair
DS
MID095D62864M8CEC
•
•
1G
Corsair
XMS2-5400
4
Corsair
DS
Heat-Sink Package
•
•
256MB
HY
HYMP532U64CP6-Y5 AB
5
Hynix
SS
HY5PS121621CFP-Y5
•
•
512MB
HY
HYMP564U64AP8-Y4 AA
N/A
Hynix
SS
HY5PS12821AFP-Y4
•
•
512MB
HY
HYMP564U64AP8-Y5 AA
N/A
Hynix
SS
HY5PS12821AFP-Y5
•
•
1G
HY
HYMP512U64AP8-Y5 AB
N/A
Hynix
DS
HY5PS12821AFP-Y5
•
•
1G
HY
HYMP512U64CP8-Y5 AB
5
Hynix
DS
HY5PS12521CFP-Y5
•
•
512MB
Kingmax
KLCC28F-A8EB5
N/A
Elpida
SS
E5108AE-6E-E
•
•
512MB
Kingmax
KLCC28F-A8KB5
N/A
Kingmax
SS
KKEA88B4LAUG-29DX
•
•
1G
Kingmax
KLCD48F-A8KB5
N/A
Kingmax
DS
KKEA88B4LAUG-29DX
•
•
512MB
Apacer
78.91092.420
N/A
Elpida
SS
E5108AE-6E-E
•
•
512MB
Apacer
AU512E667C5KBGC
5
Apacer
SS
AM4B5708MIJS7E0627B
•
•
512MB
Apacer
AU512E667C5KBGC
5
Apacer
SS
AM4B5708GQJS7E06332F
•
•
512MB
Apacer
78.91G92.9KC
5
Apacer
SS
AM4B5708GQJS7E0706F
•
•
1G
Apacer
AU01GE667C5KBGC
N/A
Apacer
DS
AM4B5708GQJS7E0636B
•
•
1G
Apacer
78.01092.420
5
Elpida
DS
E5108AE-6E-E
•
•
1G
Apacer
AU01GE667C5KBGC
5
Apacer
DS
AM4B5708MIJS7E0627B
•
•
512MB
ADATA
M20EL5G3H3160B1C0Z
N/A
Elpida
SS
E5108AE-6E-E
•
•
512MB
ADATA
M20AD5G3H3166I1C52
N/A
ADATA
SS
AD29608A8A-3EG20648
•
•
(continued on the next page)
2-14
Chapter 2: Hardware information
Qualified Vendors Lists (QVL)
DDR2-667
Size
Vendor
Model
CL
Brand
SS/
DS
Component
DIMM support
A*
B*
512MB
ADATA
M20AD5G3H3166I1C52
N/A
ADATA
SS
AD29608A8A-3EG20718
•
•
1G
ADATA
M2OAD5G3I4176I1C52
N/A
ADATA
DS
AD29608A8A-3EG20645
•
•
2G
ADATA
M2OAD5H3J4170I1C53
N/A
ADATA
DS
AD20908A8A-3EG 30724
•
•
512MB
VDATA
M2GVD5G3H31A4I1C52
N/A
VDATA
SS
VD29608A8A-3EC20615
•
•
512MB
VDATA
M2YVD5G3H31P4I1C52
N/A
VDATA
SS
VD29608A8A-3EG20627
•
•
512MB
VDATA
M2GVD5G3H166I1C52
N/A
VDATA
SS
VD29608A8A-3EG20637
•
•
1G
VDATA
M2GVD5G3I41P6I1C52
N/A
VDATA
DS
VD29608A8A-3EG20627
•
•
1G
VDATA
M2GVD5G3I41C4I1C52
N/A
VDATA
DS
VD29608A8A-3EC20620
•
•
1G
VDATA
M2GVD5G3I4176I1C52
N/A
VDATA
DS
VD29608A8A-3EG20641
•
•
512MB
PSC
AL6E8E63B-6E1K
5
PSC
SS
A3R12E3GEF637BLC5N
•
•
512MB
PSC
AL6E8E63J-6E1
5
PSC
SS
A3R12E3JFF717B9A00
•
•
1G
PSC
AL7E8E63B-6E1K
5
PSC
DS
A3R12E3GEF637BLC5N
•
•
1G
PSC
AL7E8E63J-6E1
5
PSC
DS
A3R12E3JFF717B9A01
•
•
1G
PSC
AL7E8F73C-6E1
5
PSC
SS
A3R1GE3CFF734MAA0J
•
•
2G
PSC
AL8E8F73C-6E1
5
PSC
DS
A3R1GE3CFF733MAA00
•
•
256MB
Nanya
NT256T64UH4A1FY-3C
N/A
Nanya
SS
NT5TU32M16AG-3C
•
•
512MB
Nanya
NT512T64U88A1BY-3C
N/A
Nanya
SS
NT5TU64M8AE-3C
•
•
1G
Kingtiger
E0736001024667
N/A
Kingtiger
DS
KTG667PS6408NST-C6 GDBTX
•
•
1G
ELIXIR
M2Y1G64TU8HA2B-3C
5
ELIXIR
DS
M2TU51280AE-3C717095R28F
•
•
1G
Leadmaax
LRMP512U64A8-Y5
N/A
Hynix
DS
HY5PS12821CFP-Y5 C 702AA
•
•
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 both the yellow slots as one pair of Dual-channel memory configuration.
Visit the ASUS website for the latest DDR2-667 / 533 MHz QVL.
ASUS P5LD2-C/IPAT
2-15
2.4.3
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:
1.
Unlock a DIMM socket by pressing
2.
Align a DIMM on the socket
DIMM matches the break on
3.
3
DDR2 DIMM notch
the retaining clips outward.
such that the notch on the
the socket.
1
Firmly insert the DIMM into the
socket until the retaining clips snap
back in place and the DIMM is properly seated.
Unlocked retaining clip
2.4.4
•
A DDR2 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.
•
The DDR2 DIMM sockets do not support DDR DIMMs. DO not install DDR
DIMMs to the DDR2 DIMM sockets.
Removing a DIMM
Follow these steps to remove a DIMM.
1.
clips outward to unlock the DIMM.
Support the DIMM lightly with your fingers when pressing the
retaining clips. The DIMM might get damaged when it flips
out with extra force.
2.
2-16
2
Simultaneously press the retaining
1
1
DDR2 DIMM notch
Remove the DIMM from the socket.
Chapter 2: Hardware information
2.5
Expansion slots
In the future, you may need to install expansion cards. The following sub‑sections
describe the slots and the expansion cards that they support.
Ensure to unplug the power cord before adding or removing expansion cards.
Failure to do so may cause you physical injury and damage motherboard
components.
2.5.1
Installing an expansion card
To install an expansion card:
1.
2.
3.
4.
5.
6.
Before installing the expansion card, read the documentation that came with
it and make the necessary hardware settings for the card.
Remove the system unit cover (if your motherboard is already installed in a
chassis).
Remove the bracket opposite the slot that you intend to use. Keep the screw
for later use.
Align the card connector with the slot and press firmly until the card is
completely seated on the slot.
Secure the card to the chassis with the screw you removed earlier.
Replace the system cover.
2.5.2
Configuring an expansion card
After installing the expansion card, configure the it by adjusting the software
settings.
1.
2.
3.
Turn on the system and change the necessary BIOS settings, if any. See
Chapter 4 for information on BIOS setup.
Assign an IRQ to the card. Refer to the tables on the next page.
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. Refer to the table on the next page for details.
ASUS P5LD2-C/IPAT
2-17
2.5.3
Interrupt assignments
Standard interrupt assignments
IRQ
Standard Function
1
Keyboard Controller
0
System Timer
2
Re-direct to IRQ#9
3
—
4
Communications Port (COM1)*
5
IRQ holder for PCI steering*
6
Floppy Disk Controller
7
Printer Port (LPT1)*
8
System CMOS/Real Time Clock
9
IRQ holder for PCI steering*
10
IRQ holder for PCI steering*
11
IRQ holder for PCI steering*
12
PS/2 Compatible Mouse Port*
13
Numeric Data Processor
14
Primary IDE Channel
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
PCI slot 1
PCI slot 2
PCI slot 3
PCIe x16 slot
—
—
—
shared
shared
Onboard USB controller 1
shared
Onboard USB controller 2
Onboard USB controller 3
Onboard USB controller 4
Onboard USB 2.0 controller
B
shared
PCIe x1 slot 1
PCIe x1 slot 2
—
C
—
—
shared­
shared­
—
—
—
—­
—­
—
—
shared
—
—
—
—
—
—
shared
—
—
—
—
—
—
Onboard LAN controller
—
shared
—
—
—
—­
—
—
—­­
—
—­
—­
—­
—­
—­
G
—
—
—
—
F
—
—
—
shared
—
E
—
—
—
—
D
—
—
Onboard IDE port
Onboard HD Audio controller
2-18
A
—
—­
—­
—
—­
—­
—­
—­
—­
—­
—­
H
—
—
—
—
—
—
—
—
—
—­
—­
—­
—
—
shared­
—­
—­
—
shared
—­
shared
—­
—
—­
—­
—­
—­
—
shared­
—
—­
—­
—­
—­
—
—
—
—­
Chapter 2: Hardware information
2.5.4
PCI slots
The PCI slots support cards such as
a LAN card, SCSI card, USB card,
and other cards that comply with PCI
specifications. The figure shows a LAN
card installed on a PCI slot.
2.5.5
PCI Express x16 slot
This motherboard supports PCI Express
x16 graphic cards that comply with the
PCI Express specifications. The following
figure shows a graphics card installed on
the PCI Express x16 slot.
2.5.6
PCI Express x1 slot
This motherboard supports PCI Express
x1 network cards, SCSI cards and other
cards that comply with the PCI Express
specifications. The following figure shows
a network card installed on the PCI
Express x1 slot.
ASUS P5LD2-C/IPAT
2-19
2.6
Jumpers
1.
Clear RTC RAM (CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and system setup
parameters by erasing the CMOS RTC RAM data. The onboard button
cell battery powers the RAM data in CMOS, which include system setup
information such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Remove the onboard battery.
3. 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.
4. Re-install the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the <Del> key during the boot process and enter BIOS setup
to re-enter data.
P5LD2-C/IPAT
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper
default position. Removing the cap will cause system boot failure!
CLRTC
1 2
Normal
(Default)
2 3
Clear RTC
P5LD2-C/IPAT Clear RTC RAM
2-20
Chapter 2: Hardware information
USB device wake-up (3-pin PS2_USBPW1-8)
This jumper allows you to wake up the computer from S1 mode (CPU
stopped, DRAM refreshed, system running in low power mode) using the
connected USB device. Set this jumper to pins 2-3 (+5VSB) to wake up the
computer from S3 and S4 modes (no power to CPU, DRAM in slow refresh,
power supply in reduced power mode).
+5V
(Default)
2 3
PS2_USBPW1-8
1 2
P5LD2-C/IPAT
2.
+5VSB
P5LD2-C/IPAT USB Device Wake Up
The total current consumed must NOT exceed the power supply capability
(+5VSB) whether under normal condition or in sleep mode.
ASUS P5LD2-C/IPAT
2-21
2.7
Connectors
2.7.1
Rear panel connectors
1
2
3
4
5
6
11
1.
2.
3.
10
9
8
7
PS/2 mouse port (green). This port is for a PS/2 mouse.
Parallel port. This 25-pin port connects a parallel printer, a scanner, or other
devices.
LAN (RJ-45) port. This port allows 10/100Mb 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
Activity/Link
Status
Description
OFF
No link
YELLOW
Linked
BLINKING
Data activity
4.
5.
6.
Speed LED
Status
Description
OFF
10 Mbps connection
ORANGE 100 Mbps connection
GREEN
1 Gbps connection
ACT/LINK
LED
SPEED
LED
LAN port
Line In port (light blue). This port connects a tape, CD, DVD player, or other
audio sources.
Line Out port (lime). This port connects a headphone or a speaker. In 4channel, and 6-channel configuration, the function of this port becomes Front
Speaker Out.
Microphone port (pink). This port connects a microphone.
Refer to the audio configuration table on next page for the function of the audio
ports in 2, 4, or 6-channel configuration.
2-22
Chapter 2: Hardware information
Audio 2, 4, or 6-channel configuration
Port
7.
8.
9.
Headset
2-speaker
4-speaker
6-speaker
Light Blue
Line In
Surround Out
Surround Out
Lime
Line Out
Front Speaker Out
Front Speaker Out
Pink
Mic In
Mic In
Center/Bass
USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports
are available for connecting USB 2.0/1.1 devices.
USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports
are available for connecting USB 2.0/1.1 devices.
Serial port (COM2). This port connects a modem, or other devices that
conform with serial specification.
10. Serial port (COM1). This port connects a modem, or other devices that
conform with serial specification.
11. PS/2 keyboard port (purple). This port is for a PS/2 keyboard.
2.7.2
1.
Internal connectors
Floppy disk drive connector (34-1 pin FLOPPY)
This connector is for the provided floppy disk drive (FDD) signal cable. Insert
one end of the cable to this connector, then connect the other end to the
signal connector at the back of the floppy disk drive.
P5LD2-C/IPAT
Pin 5 on the connector is removed to prevent incorrect cable connection when
using a FDD cable with a covered Pin 5.
FLOPPY
PIN 1
NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1.
P5LD2-C/IPAT Floppy Disk Drive Connector
ASUS P5LD2-C/IPAT
2-23
ICH7 Primary IDE connector (40-1 pin PRI_IDE)
This connector is for an Ultra DMA 100/66/33 signal cable. The Ultra
DMA 100/66/33 signal cable has three connectors: a blue connector for the
primary IDE connector on the motherboard, a black connector for an Ultra
DMA 100/66/33 IDE slave device (optical drive/hard disk drive), and a gray
connector for an Ultra DMA 100/66/33 IDE master device (hard disk drive).
If you install two hard disk drives, you must configure the second drive
as a slave device by setting its jumper accordingly. Refer to the hard disk
documentation for the jumper settings.
•
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
P5LD2-C/IPAT
2.
P5LD2-C/IPAT IDE Connector
3.
Optical drive audio connector (4-pin CD)
This connector is for the 4-pin audio cable that connects to the audio
connector at the back of the optical drive.
Right Audio Channel
Ground
Ground
Left Audio Channel
P5LD2-C/IPAT
CD
(black)
P5LD2-C/IPAT Internal Audio Connector
2-24
Chapter 2: Hardware information
SATA1
SATA2
GND
RSATA_RXN1
RSATA_RXP1
GND
RSATA_TXN1
RSATA_TXP1
GND
GND
RSATA_RXN2
RSATA_RXP2
GND
RSATA_TXN2
RSATA_TXP2
GND
Serial ATA connectors (7-pin SATA1 [red], SATA2 [red], SATA3 [black],
SATA4 [black])
These connectors are for the Serial ATA signal cables for Serial ATA hard disk
drives.
SATA3
SATA4
GND
RSATA_RXN4
RSATA_RXP4
GND
RSATA_TXN4
RSATA_TXP4
GND
GND
RSATA_RXN3
RSATA_RXP3
GND
RSATA_TXN3
RSATA_TXP3
GND
P5LD2-C/IPAT
4.
P5LD2-C/IPAT SATA Connectors
•
•
You must install Windows® 2000 Service Pack 4 or the Windows® XP
Service Pack 1 before using Serial ATA hard disk drives.
When using the connectors in Standard IDE mode, connect the primary
(boot) hard disk drive to the SATA1 or SATA2 connector. Refer to the table
below for the recommended SATA hard disk drive connections.
Serial ATA hard disk drive connection
Connector
Color
Setting
Use
SATA1/SATA2
Red
Master
Boot disk
SATA3/SATA4
Black
Slave
Data disk
ASUS P5LD2-C/IPAT
2-25
5.
Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that
supports either HD Audio or legacy AC’97 audio standard.
AAFP
NC
AGND
NC
NC
Legacy AC’97
compliant definition
MIC2
MICPWR
Line out_R
NC
Line out_L
SENSE2_RETUR
GND
PRESENSE#
SENSE1_RETUR
PORT1L
PORT1R
PORT2R
SEBSE_SEND
PORT2L
P5LD2-C/IPAT
HD-audio-compliant
pin definition
P5LD2-C/IPAT Front Panel Audio Connector
We recommend that you connect a high-definition front panel audio module
to this connector to avail the motherboard high‑definition audio capability.
USB+5V
USB_P5USB_P5+
GND
1
USB+5V
USB_P8USB_P8+
GND
NC
USB78
1
USB+5V
USB_P7USB_P7+
GND
USB56
USB+5V
USB_P6USB_P6+
GND
NC
USB port connectors (10-1 pin USB56, USB78)
These connectors are for USB 2.0 ports. Connect the optional 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.
P5LD2-C/IPAT
6.
P5LD2-C/IPAT USB 2.0 Connectors
The USB cable is purchased separately.
2-26
Chapter 2: Hardware information
7.
CPU and chassis fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN)
The fan connectors support cooling fans of 350 mA ~ 2000 mA (24 W max.) or
a total of 1 A ~ 3.48 A (41.76 W max.) at +12V. Connect the fan cables to the
fan connectors on the motherboard, making sure 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
P5LD2-C/IPAT
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
CHA_FAN
GND
+12V
Rotation
P5LD2-C/IPAT Fan Connectors
Only the CPU_FAN connector support the ASUS Q­­­­­‑Fan feature.
8.
Chassis intrusion connector (4-1 pin CHASSIS)
This connector is for a chassis-mounted intrusion detection sensor or switch.
Connect one end of the chassis intrusion sensor or switch cable to this
connector. The chassis intrusion sensor or switch sends a high-level signal to
this connector when a chassis component is removed or replaced. The signal
is then generated as a chassis intrusion event.
Chassis Signal
GND
CHASSIS
+5VSB_MB
P5LD2-C/IPAT
By default, the pins labeled “Chassis Signal” and “GND” are shorted with
a jumper cap. Remove the jumper caps only when you intend to use the
chassis intrusion detection feature.
(Default)
P5LD2-C/IPAT Intrusion Connector
ASUS P5LD2-C/IPAT
2-27
9.
ATX power connectors (24-pin EATXPW, 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.
•
Use of an ATX 12 V Specification 2.0 -compliant power supply unit (PSU)
that provides a minimum power of 350 W is recommended for a fullyconfigured system.
•
Do not forget to connect the 4-pin ATX +12 V power plug; otherwise, the
system will not boot up.
•
Use of a PSU with a higher power output is recommended when
configuring a system with more power consuming devices. The system may
become unstable or may not boot up if the power is inadequate.
EATXPWR
ATX12V
+12V DC
GND
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
Ground
+5 Volts
Ground
+5 Volts
Ground
+3 Volts
+3 Volts
P5LD2-C/IPAT
+12V DC
GND
P5LD2-C/IPAT ATX Power Connector
Ground
+5 Volts
+5 Volts
+5 Volts
-5 Volts
Ground
Ground
Ground
PSON#
Ground
-12 Volts
+3 Volts
10. Speaker connector (4-pin SPEAKER)
This 4-pin connector is for the chasis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.
+5V
GND
GND
Speaker Out
P5LD2-C/IPAT
SPEAKER
1
P5LD2-C/IPAT Speaker Out Connector
2-28
Chapter 2: Hardware information
11. System panel connector (10-1 pin F_PANEL)
This connector supports several chassis-mounted functions.
PLED+
PLEDPWR
GND
F_PANEL
HDLED+
HDLEDGround
Reset
P5LD2-C/IPAT
PLED PWRBTN
+HD LED RESET
P5LD2-C/IPAT 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 +HD_LED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity
LED cable to this connector. The IDE LED lights up or flashes when data is
read from or written to the HDD.
ATX power button/soft-off button (2-pin PWRBTN)
This connector is for the system power button. Pressing the power button
turns the system on or puts the system in sleep or soft-off mode depending
on the BIOS settings. Pressing the power switch for more than four seconds
while the system is ON turns the system OFF.
Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system
reboot without turning off the system power.
ASUS P5LD2-C/IPAT
2-29
2-30
Chapter 2: Hardware information
This chapter describes the power up
sequence, the vocal POST messages,
and ways of shutting down the system.
3
Powering up
Chapter summary
3.1
3.2
3
Starting up for the first time......................................................... 3-1
Powering off the computer........................................................... 3-2
ASUS P5LD2-C/IPAT
3.1
Starting up for the first time
1.
After making all the connections, replace the system case cover.
3.
Connect the power cord to the power connector at the back of the system
chassis.
2.
4.
5.
Be sure that all switches are off.
Connect the power cord to a power outlet that is equipped with a surge
protector.
Turn on the devices in the following order:
a. Monitor
b. External SCSI devices (starting with the last device on the chain)
6.
c. System power
After applying power, the system power LED on the system front panel case
lights up. For systems with ATX power supplies, the system LED lights up
when you press the ATX power button. If your monitor complies with “green”
standards or if it has a “power standby” feature, the monitor LED may light up
or switch between orange and green after the system LED turns on.
The system then runs the power-on self tests or POST. While the tests are
running, the BIOS beeps (see BIOS beep codes table below) or additional
messages appear on the screen. If you do not see anything within 30
seconds from the time you turned on the power, the system may have failed
a power-on test. Check the jumper settings and connections or call your
retailer for assistance.
AMI BIOS beep codes
Beep Description
Error
One beep
Keyboard controller error
Refresh Time error
No master drive detected
Two continuous beeps followed by two short beeps
Floppy controller failure
Two continuous beeps followed by four short beeps
Hardware component failure
7.
At power on, hold down the <Delete> key to enter the BIOS Setup. Follow the
instructions in Chapter 4.
ASUS P5LD2-C/IPAT
3-
3.2
Powering off the computer
3.2.1
Using the OS shut down function
Using Windows® XP:
1.
2.
Click the Start button then select Turn Off Computer.
Click the Turn Off button to shut down the computer.
3.2.2
Using the dual function power switch
While the system is ON, pressing the power switch for less than four seconds puts
the system to sleep mode or to soft-off mode, depending on the BIOS setting.
Pressing the power switch for more than four seconds lets the system enter the
soft-off mode regardless of the BIOS setting. Refer to section “4.4 Advanced
menu” in Chapter 4 for details.
3-
Chapter 3: Powering up
This chapter tells how to change
the system settings through the BIOS
Setup menus. Detailed descriptions
of the BIOS parameters are also
provided.
4
BIOS setup
Chapter summary
4
4.1
Managing and updating your BIOS............................................. 4-1
4.3
Main menu..................................................................................... 4-9
4.2
4.4
BIOS setup program..................................................................... 4-6
Advanced menu.......................................................................... 4-10
4.5
Chipset menu.............................................................................. 4-20
4.7
Security menu............................................................................. 4-24
4.6
4.8
Boot menu................................................................................... 4-23
Exit menu..................................................................................... 4-26
ASUS P5LD2-C/IPAT
4.1
Managing and updating your BIOS
The following utilities allow you to manage and update the motherboard Basic
Input/Output System (BIOS) setup.
1.
2.
ASUS AFUDOS: Updates the BIOS in DOS mode using a bootable floppy
disk.
ASUS AFUWIN: Updates the BIOS in Windows® environment.
Refer to the corresponding sections for details on these utilities.
Save a copy of the original motherboard BIOS file to a bootable floppy disk in
case you need to restore the BIOS in the future. Copy the original motherboard
BIOS using the ASUS Update or AFUDOS utilities.
4.1.1
1.
Creating a bootable floppy disk
Do either one of the following to create a bootable floppy disk.
DOS environment
a. Insert a 1.44MB floppy disk into the drive.
b. At the DOS prompt, type format A:/S then press <Enter>.
2.
Windows® XP environment
a. Insert a 1.44 MB floppy disk to the floppy disk drive.
b. Click Start from the Windows® desktop, then select My Computer.
c. Select the 3 1/2 Floppy Drive icon.
d. Click File from the menu, then select Format. A Format 3 1/2 Floppy Disk
window appears.
e. Windows® XP users: Select Create an MS-DOS startup disk from the
format options field, then click Start.
Copy the original or the latest motherboard BIOS file to the bootable floppy
disk.
ASUS P5LD2-C/IPAT
4-
4.1.2
AFUDOS utility
The AFUDOS utility allows you to update the BIOS file in DOS environment using
a bootable floppy disk with the updated BIOS file. This utility also allows you to
copy the current BIOS file that you can use as backup when the BIOS fails or gets
corrupted during the updating process.
Copying the current BIOS
To copy the current BIOS file using the AFUDOS utility:
1.
2.
•
Ensure that the floppy disk is not write-protected and has at least 1.2 MB
free space to save the file.
•
The succeeding BIOS screens are for reference only. The actual BIOS
screen displays may not be same as shown.
Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to
the bootable floppy disk you created earlier.
Boot the system in DOS mode, then at the prompt type:
afudos /o[filename]
where the [filename] is any user-assigned filename not more than eight
alphanumeric characters for the main filename and three alphanumeric
characters for the extension name.
A:\>afudos /oOLDBIOS1.rom
Main filename
3.
Extension name
Press <Enter>. The utility copies the current BIOS file to the floppy disk.
A:\>afudos /oOLDBIOS1.rom
AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.
Reading flash ..... done
Write to file...... ok
A:\>
The utility returns to the DOS prompt after copying the current BIOS file.
4-
Chapter 4: BIOS setup
Updating the BIOS file
To update the BIOS file using the AFUDOS utility:
1.
Visit the ASUS website (www.asus.com) and download the latest BIOS file for
the motherboard. Save the BIOS file to a bootable floppy disk.
Write the BIOS filename on a piece of paper. You need to type the exact BIOS
filename at the DOS prompt.
2.
3.
Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to
the bootable floppy disk you created earlier.
Boot the system in DOS mode, then at the prompt type:
afudos /i[filename]
where [filename] is the latest or the original BIOS file on the bootable floppy
disk.
A:\>afudos /iP5LD2CIPAT.rom
4.
The utility verifies the file and starts updating the BIOS.
A:\>afudos /iP5LD2CIPAT.rom
AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.
WARNING!! Do not turn off power during flash BIOS
Reading file ....... done
Reading flash ...... done
Advance Check ......
Erasing flash ...... done
Writing flash ...... 0x0008CC00 (9%)
Do not shut down or reset the system while updating the BIOS to
prevent system boot failure!
ASUS P5LD2-C/IPAT
4-
5.
The utility returns to the DOS prompt after the BIOS update process is
completed. Reboot the system from the hard disk drive.
A:\>afudos /iP5LD2CIPAT.rom
AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.
WARNING!! Do not turn off power during flash BIOS
Reading file ....... done
Reading flash ...... done
Advance Check ......
Erasing flash ...... done
Writing flash ...... done
Verifying flash .... done
Please restart your computer
A:\>
4-
Chapter 4: BIOS setup
4.1.3
AFUWIN utility
The AFUWIN utility allows you to update the BIOS file in a Windows® environment.
To update the BIOS using AFUWIN:
1.
Download the latest BIOS file for your motherboard from the ASUS website
(www.asus.com) and save the BIOS file to a new folder.
Write the BIOS filename on a piece of paper. You need to type the exact BIOS
filename at the DOS prompt later.
2.
3.
4.
Copy the AFUWIN utilities (Afwin.exe and AMIFLDrv.sys) from the
motherboard support CD to the folder with the downloaded BIOS file.
Click Start > Programs > Accessories > Command Prompt to run the
DOS command promt. You can also click Start > RUN, then type cmd at the
prompt.
From the command prompt, change the directory to the folder with the BIOS
file and AFUWIN utilities, then type:
afuwin /i[BIOS filename]
C:\BIOS>afuwin /iP5LD2-CIPAT.ROM
The utility verifies the file and starts updating the BIOS.
Do not shut down or reset the system while updating the BIOS to prevent
system boot failure!
5.
The utility returns to the command prompt after the BIOS update process is
completed. Type Exit to return to Windows.
C:\BIOS>afuwin /iP5LD2-CIPAT.ROM
AMI Firmware Update Utility for APTIO - Version 2.09 ASUS 0.04
Copyright (C) 2004 American Megatrends, Inc. All rights reserved.
BIOS Version 0104<11.01>
Image Version 0122<11.02>
6.
Reading file ....... done
Erasing flash ...... done
Writing flash ...... done
Verifying flash .... done
Erasing BootBlock...done
Writing BootBlock...done
Verifying BootBlock...done
Restart your computer.
ASUS P5LD2-C/IPAT
4-
4.2
BIOS setup program
This motherboard supports a programmable Serial Peripheral Interface (SPI) chip
that you can update using the provided utility described in section “4.1 Managing
and updating your BIOS.”
Use the BIOS Setup program when you are installing a motherboard, reconfiguring
your system, or prompted to“Run Setup.” This section explains how to configure
your system using this utility.
Even if you are not prompted to use the Setup program, you can change the
configuration of your computer in the future. For example, you can enable the
security password feature or change the power management settings. This
requires you to reconfigure your system using the BIOS Setup program so that the
computer can recognize these changes and record them in the CMOS RAM of the
SPI chip.
The SPI chip on the motherboard stores the Setup utility. When you start up the
computer, the system provides you with the opportunity to run this program. Press
<Del> during the Power-On Self-Test (POST) to enter the Setup utility; otherwise,
POST continues with its test routines.
If you wish to enter Setup after POST, reboot the system by doing any of the
following procedures:
• Restart using the OS standard shut-down procedure.
• 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.
Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to
force reset from a running operating system can cause damage to your data
or system. We recommend to always shut-down the system properly from the
operating system.
The Setup program is designed to make it as easy to use as possible. Being a
menu-driven program, it lets you scroll through the various sub-menus and make
your selections from the available options using the navigation keys.
4-
•
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 Default Settings item under the
Exit Menu. See section “4.8 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 (www.asus.com) to download the latest BIOS file for
this motherboard.
Chapter 4: BIOS setup
4.2.1
BIOS menu screen
Menu items
Menu bar
Pxe Boot support
Pxe Boot Option
Configuration fields
General help
[Enabled]
Enable or Disable the
Pxe Boot Option.
ACPI Settings
CPU Configuration
IDE Configuration
On Board LAN
Other Power On Deice
Super IO Configuration
PCI Subsystem Settings
Sub-menu items
4.2.2
Navigation keys
Menu bar
The menu bar on top of the screen has the following main items:
Main
For changing the basic system configuration
Chipset
For changing the chipset configuration
Advanced
Boot
For changing the advanced system settings
For changing the system boot configuration
Security
Save & Exit
For changing the system security settings
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.
4.2.3
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.
ASUS P5LD2-C/IPAT
4-
4.2.4
Menu items
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,
and Exit) on the menu bar have their
respective menu items.
4.2.5
Sub-menu items
BIOS Information
BIOS Vendor
Core Version
American Megatrends
4.5.0
Project Version A0657 2.49
Build Date
Dec 19 2006
Choose the system default
language
Memory Information
Total Memory
256 MB (DDR2)
Main menu items
A solid triangle before each item on any menu screen means that the iteam has a
sub-menu. To display the sub-menu, select the item and press <Enter>.
4.2.6
Configuration fields
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 user-configurable.
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 section “4.2.7 Pop-up window”.
4.2.7
Pop-up window
Select a menu item then press <Enter>
to display a pop-up window with the
configuration options for that item.
4.2.8
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.
4.2.9
On Board LAN Configuration
On Board LAN Chip
S5 WOL
Enable or Disable Onboard
LAN Chip.
[Enabled]
[Enabled]
ACPI Settings
CPU Configuration
IDE Configuration
USB Configuration
Super IO Configuration
Pop-up window
Scroll bar
General help
At the top right corner of the menu screen is a brief description of the selected
item.
4-
Chapter 4: BIOS setup
4.3
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 “4.2.1 BIOS menu screen” for information on the menu screen
items and how to navigate through them.
BIOS Information
BIOS Vendor
Core Version
Project Version Build Date
Set the Date. Use Tab
to switch between Date
American Megatrends elements.
4.6.0
P5LD2-C/IPAT
12/14/2007 11:17:03
Memory Information
Total Memory
512 MB (DDR2)
System Date
System Time
[Sun 01/16/2005]
[05:06:04]
Access Level
Administrator
4.3.1
BIOS Information
Displays the auto-detected BIOS information
4.3.2
Memory Information
Displays the auto-detected system memory
4.3.3
System Date [Day xx/xx/xxxx]
Allows you to set the system date.
4.3.4
System Time [xx:xx:xx]
Allows you to set the system time.
ASUS P5LD2-C/IPAT
4-
4.4
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.
Pxe Boot Support
Pxe Boot Option
[Enabled]
Enable or Disable the
Pxe Boot Option.
ACPI Settings
CPU Configuration
IDE Configuration
On Board LAN
Other Power On Device
Super IO Configuration
PCI Subsystem Settings
4.4.1
Pxe Boot Option [Enabled]
Allows you to enable or disable the Pxe Boot Option.
Configuration options: [Enabled] [Disabled]
4-10
Chapter 4: BIOS setup
4.4.2
ACPI Settings
The items in this menu allows you to change the settings for the Advanced
Configuration and Power Interface (ACPI). Select an item then press <Enter> to
display the configuration options.
Enable ACPI Auto Configuration
[Disabled]
ACPI Sleep State
S3 Video Repost
[S3(suspend to RAM)]
[Disabled]
Enable or Disable BIOS
ACPI Auto Configuration.
Enable ACPI Auto Configuration [Disabled]
Allows you to enable or disable the ACPI auto configuration.
Configuration options: [Enabled] [Disabled]
The following items appear only when the Enable ACPI Auto
Configuration item is set to [Disabled].
ACPI Sleep State [S3(Suspend to RAM)]
Allows you to select the highest ACPI sleep state the system would enter when the
SUSPEND button is pressed. Configuration options: [Suspend Disabled] [S1(CPU
Stop Clock] [S3(Suspend to RAM)]
S3 Video Repos [Disabled]
Allows you to enable or disable S3 Video Repost. Configuration options: [Disabled]
[Enabled]
ASUS P5LD2-C/IPAT
4-11
4.4.3
CPU Configuration
The items in this menu show the CPU-related information that the BIOS
automatically detects.
CPU Configuration
Processor Type
Processor Speed
System Bus Speed
Processor Stepping
Microcode Revision
Processor Core
Hyper-Threading EM64
XD can prevent certain
classes of malicious
buffer overflow attacks
Intel(R) Core(TM)2 CPU when combined with a
6300 @ 1.86GHz
supporting OS (Windows
1866 MHz
Server 2003 SP1, Windows
1066 MHz
XP SP2, SuSE Linux 902,
6f2
RedHAT Enterprise 3
56
Update 3.)
Dual
Not Supported
Supported
Execute Disable Bit
[Enabled]
Limit CPUID Maximum
[Disabled]
Intel Virtualization Technology [Disabled]
Intel SpeedStep
[Disabled]
Enhanced C1
[Disabled]
Intel TM
[Disabled]
Execute Disable Bit [Enabled]
Allows you to enables or disables Intel® Execute Disable Bit function. This function
enhance protection of your computer, reducing exposure to viruses and malicious
buffer overflow attacks when working with its supporting software and system.
Configuration options: [Disabled] [Enabled]
Limit CPUID Maximum [Disabled]
Allows you to determine whether to limit CPUID maximum value. Set this item to
[Disabled] for Windows XP operating system; set this item to [Enabled] for legacy
operating system such as Windows NT4.0. (Default: Disabled)
Configuration options: [Disabled] [Enabled]
Intel Virtualization Technology [Disabled]
Allows you to enable or disable 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]
Intel SpeedStep [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: [Disabled] [Enabled]
4-12
Chapter 4: BIOS setup
Enhanced C1 [Enabled]
Allows you to enable or disable Inter CPU Enhanced Halt (C1E) function, a CPU
power-saving function in system halt state. When enable, the CPU core frequency
and voltage will be reduced during the system halt state to decrease power
consumption. Configuration options: [Disabled] [Enabled]
Intel TM [Enabled]
Allows you to 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: [Disable]
[Enabled]
4.4.4
IDE Configuration
The items in this menu allow you to set or change the configurations for the IDE
devices installed in the system. Select an item then press <Enter> if you wish to
configure the item.
IDE Configuration
Enable/Disable IDE
Controller
PATA Master
PATA Slave
Not Present
Not Present
SATA
SATA
SATA
SATA
Not
Not
Not
Not
Port1
Port2
Port3
Port4
IDE Controller
IDE mode
Serial-ATA
Serial-ATA
Serial-ATA
Serial-ATA
Port
Port
Port
Port
Present
Present
Present
Present
[Enabled]
[PATA-Primary,SATA-...]
1
2
3
4
[Enabled]
[Enabled]
[Enabled]
[Enabled]
IDE Controller [Enabled]
Allows you to enable or disable the onboard IDE controller.
\Configuration options: [Enabled] [Disabled]
IDE Mode [PATA-Primary, SATA-...]
Allows you to select the IDE mode.Configuration options: [SATA only-Primary/
Secondary (Non-combined, Legacy)] [SATA-Primary, PATA-Secondary (combined,
Legacy)] [PATA-Primary, SATA-Secondary (Combined, Legacy)] [PATA onlyPrimary (Non-combined, Legacy)] [PATA-Primary, SATA-Ports 1,2,3,4 (Noncombined, PATA-Legacy)]
ASUS P5LD2-C/IPAT
4-13
Serial-ATA Port1/2/3/4 [Enabled]
Allows you to disable or enable the Serial-ATA devices.
Configuration options: [Disabled] [Enabled]
4.4.5
On Board LAN
The items in this menu allow you to change the configurations for onboard LAN.
Select an item then press <Enter> to display the configuration options.
On Board LAN
On Board LAN Chip
S5 WOL
On Board LAN Boot ROM
[Enabled]
[Enabled]
[Disabled]
Enable or Disable
Onboard LAN Chip.
On Board LAN Chip [Enabled]
Allows you to enable or disable the onboard LAN chip.
Configuration options: [Enabled] [Disabled]
The following item appears only when the On Board LAN Chip item is set to
[Enabled].
S5 WOL [Enabled]
Allows you to enable or disable the LAN S5 wake up.
Configuration options: [Enabled] [Disabled]
On Board LAN Boot ROM [Disabled]
Allows you to enable or disable the onboard LAN Boot ROM.
Configuration options: [Enabled] [Disabled]
4-14
Chapter 4: BIOS setup
4.4.6
Other Power On Device
The items in this menu allow you to change the configurations for other power on
device. Select an item then press <Enter> to display the configuration options.
Other Power On Device
Power
Power
Power
Power
On
On
On
On
By
By
By
By
PCI/PCIE
PS/2 Keyboard
Ps/2 Mouse
External Modems
[Enabled]
[Disabled]
[Disabled]
[Disabled]
Power On By PCI/PCIE
from S5
Power On By PCI/PCIE [Ensabled]
Allows you to enable or disable Power On By PCI/PCIE from S5.
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]
Power On By External Modems [Disabled]
This allows either settings of [Enabled] or [Disabled] for powering up the computer
when the external modem receives a call while the computer is in Soft-off mode.
Configuration options: [Disabled] [Enabled]
ASUS P5LD2-C/IPAT
4-15
4.4.7
Super IO Configuration
The items in this menu allow you to set or change the configurations for super IO
devices. Select an item then press <Enter> to display the configuration options.
Super IO Configuration
Set Parameters of Floppy
Disk Controller (FDC)
Super IO Chip Winbond W83627
Floopy Disk Controller Configuration
Serial Port Configuration
Parallel Port Controller Configuration
Floppy Disk Controller Configuration
Floopy Disk Controller Configuration
Floopy Disk Controller
Device Settings
[Enabled]
Reset Required
Change Settings
Device Mode
[Auto]
[Read Write]
Enable or Disable
Floppy Disk Controller
Floppy Disk Controller [Enabled]
Allows you to enable or disable the floppy disk controller.
Configuration options: [Disabled] [Enabled]
The following item appears only when the Floppy Disk Controller item is set to
[Enabled].
Change Settings [Auto]
Allows you to select an optimal settings for the super IO device.
Configuration options: [Auto] [IO=3F0h; IRQ=6; DMA=2] [IO=3F0h; IRQ=3, 4,
5, 6, 7, 10, 12; DMA=1, 2, 3;]
Device Mode [Read Write]
Allows you to set the mode of floppy disk controller. Selects Read Write mode
for normal operation. Selects Write Protect mode for read only operation.
Configuration options: [Read Write] [Write Protect]
4-16
Chapter 4: BIOS setup
Serial Port Configuration
Serial Port Configuration
Enable or Disable
Serial Port(COM)
Serial Port 1
Device Settings
Change Settings
[Enabled]
IO=3F8h; IRQ=4;
[Auto]
Serial Poer 2
Device Settings
Change Settings
[Enabled]
IO=2F8h; IRQ=3
[Auto]
Serial Port 1/2[Enabled]
Allows you to enable or disable the Serial Port 1/2(COM).
Configuration options: [Disabled] [Enabled]
Change Settings [Auto]
Allows you to select an optimal settings for the super IO device.
Configuration options: [Auto] [IO=3F8h; IRQ=4;] [IO=3F8h; IRQ=3, 4, 5, 6, 7,
10, 11,12;] [IO=2F8h; IRQ=3, 4, 5, 6, 7, 10, 11,12;] [IO=3E8h; IRQ=3, 4, 5, 6,
7, 10, 11,12;] [IO=2E8h; IRQ=3, 4, 5, 6, 7, 10, 11,12;]
Parallel Port Configuration
Parallel Port Configuration
Parallel Port
Device Settings
[Enabled]
IO=378h; IRQ=5;
Change Settings
Device Mode
[Auto]
[STD Printer Mode]
Enable or Disable
Parallel Port(LPT/
LPTE)
Parallel Port [Enabled]
Allows you to enable or disable the Parallel Port (LPT/LPTE).
Configuration options: [Disabled] [Enabled]
Change Settings [Auto]
Allows you to select an optimal settings for the super IO device.
Configuration options: [Auto] [IO=378h; IRQ=5;] [IO=378h; IRQ=5, 6, 7, 10,
11,12;] [IO=278h; IRQ=5, 6, 7, 10, 11,12;] [IO=3BCh; IRQ=5, 6, 7, 10, 11,12;]
ASUS P5LD2-C/IPAT
4-17
Device Mode [STD Printer Mode]
Allows you to set the mode of Printer Port. Configuration options: [STD
Printer Mode] [SPP Mode] [EPP-1.9 and SPP Mode] [EPP-1.7 and SPP
Mode] [ECP Mode] [ECP and EPP 1.9 Mode] [ECP and EPP 1.7 Mode]
4.4.8
PCI Subsystem Settings
The items in this menu allow you to change the settings for PCI, PCI-X, and PCI
Express. Select an item then press <Enter> to display the configuration options.
PCI Settings
PCI Latency Timer
[32 PCI Bus Clocks]
Value to be programmed
into PCI Latency Timer
Register.
PCI Express Device Settings
Relaxed Ordering
Extended Tag
No Snoop
Maximum Payload
Maximum Read Request
[Disabled]
[Disabled]
[Enabled]
[Auto]
[Auto]
PCI Express Link Settings
ASPM Support
[Disabled]
WARNING: Enabling ASPM may cause some
PCI-E devices to fail
Extended Synch
[Disabled]
PCI Latency Timer [32 PCI Bus Clocks]
Allows you to select the value to be programmed into PCI Latency Timer Regisster.
Configuration options: [32 PCI Bus Clocks] 64 PCI Bus Clocks] [96 PCI Bus
Clocks] [128 PCI Bus Clocks] [160 PCI Bus Clocks] [192 PCI Bus Clocks] [224 PCI
Bus Clocks] [248 PCI Bus Clocks]
Relaxed Ordering [Disabled]
Allows you to enable or disable PCI Express Device Relaxed Ordering.
Configuration options: [Disabled] [Enabled]
Extended Tag [Disabled]
Allows you to enable or disable Extened Tag. When enabled, it allows Device to
use 8-bit Tag field as a requester. Configuration options: [Disabled] [Enabled]
No Snoop [Enabled]
Allows you to enable or disable PCI Express Device No Snoop option.
Configuration options: [Disabled] [Enabled]
4-18
Chapter 4: BIOS setup
Maximum Payload [Auto]
Allows you to set Maximum Payload of PCI Express Device or allow System BIOS
select the value. Configuration options: [Auto] [128 Bytes] [256 Bytes] [512 Bytes]
[1024 Bytes] [2048 Bytes] [4096 Bytes]
Maximum Read Request [Auto]
Allows you to set Maximum Read Request Size of PCI Express Device or allow
System BIOS select the value. Configuration options: [Auto] [128 Bytes] [256
Bytes] [512 Bytes] [1024 Bytes] [2048 Bytes] [4096 Bytes]
ASPM Support [Disabled]
Allows you to set the ASPM level. Configuration options: [Disabled] [Auto] [Force
L0]
[Disabled] - disabled ASPM
[Auto] - BIOS auto configure
[Force L0] - Force all likes to L0 state
Extended Synch [Disabled]
Allows you to enable or disable generation of Extended Synchronization patterns.
Configuration options: [Disabled] [Enabled]
ASUS P5LD2-C/IPAT
4-19
4.5
Chipset menu
The Advanced menu items allow you to change the advanced chipset settings.
North Bridge Parameters
North Bridge
South Bridge
Legacy USB Configuration
4.5.1
North Bridge
Memory Information
Total Memory 512 MB (DDR2)
Memory Slot A1
Memory Slot B1
256 MB (DDR2)
Not Present
Boot Graphic Adapter Priority
[PCIE->PCI]
Select which graphics
controller to use
as the primary boot
device.
Boot Graphic Adapter Priority [PCIE->PCI]
Allows you to select the graphics controller as the primary boot device.
Configuration options: [PCIE->PCI] [PCI->PCIE]
4-20
Chapter 4: BIOS setup
4.5.2
South Bridge
Audio Configuration
Azalia HD Audio
AC97 Front Panel
[Enabled]
[Disabled]
Enable / Disable Azalia
HD Audio
USB Configuration
ALL USB Ports
USB 2.0(EHCI) Support
PCI Express Ports Configuration
PCI Exress x1 Port
[Enabled]
[Enabled]
[Enaled]
Azalia HD Audio [Enabled]
Allows you to enable or disable the Azalia HD Audio.
Configuration options: [Enabled] [Disabled]
AC97 Front Panel [Disabled]
Allows you to enable or disable AC97 Front Panel. Enable this item when
AC97 Audio Front Panel is used. Configuration options: [Disabled] [Enabled]
All USB Ports [Enabled]
Allows you to enable or disable all USB. Configuration options: [Disabled]
[Enabled]
USB 2.0(EHCI) Support [Enabled]
Allows you to enable USB 2.0 (EHCI) support. Configuration options: [Disabled]
[Enabled]
PCI Express x1 Port [Enabled]
Allows you to enable the PCI Express ports in the chipset.
Configuration options: [Disabled] [Enabled]
ASUS P5LD2-C/IPAT
4-21
4.5.3
Legacy 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.
Legacy USB Configuration
Module Version 08.07.10
USB Devices:
None
Legacy USB Support EHCI Hand-off
Device Reset timeout
[Auto]
[Enabled]
[20 sec]
Enables Legacy USB
support.Auto options
disables legacy support
if no USB devices are
connecteed. DISABLED
option will keep USB
devices available only
for EFI appplications.
The Module Version and USB Devices Enabled items show the
auto-detected values. If no USB device is detected, the item shows None.
Legacy USB Support [Auto]
Allows you to enable or disable support for USB devices on legacy operating
systems (OS). 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]
EHCI Hand-off [Enabled]
Allows you to enabled or disable EHCI Hand-off. This is a workaround for OSes
without EHCI hand-off suspport. The EHCI ownership change should be claimed
by EHCI driver. Configuration options: [Disabled] [Enabled]
Device Reset timeout [20 sec]
Allows you to set the USB mass storage device start unit command timeout.
Configuration options: [10 sec] [20 sec] [30 sec] [40 sec]
4-22
Chapter 4: BIOS setup
4.6
Boot menu
The Boot menu items allow you to change the system boot options. Select an item
then press <Enter> to display the configuration options.
Boot Configuration
Quiet Boot
Setup Prompt Timeout
[Disabled]
3
Enable/Disable Quiet
Boot option
Boot Option Priorities
2.6.1
Quiet Boot [Disabled]
Allows you to enable or disable the quiet boot function.
Configuration options: [Enabled] [Disabled]
2.6.2
Setup Prompt Timeout [3]
Allows you to set the time to wait for setup activation key. Type the desired number
of seconds using the numeric keypad. The values range from 0 to 65535. 0 Means
no waiting, while 65535 (0xFFFF) means indefinite waiting.
We do not recommend you to set the setup prompt timeout to 0.
ASUS P5LD2-C/IPAT
4-23
4.7
Security menu
The Security menu items allow you to change the system security settings. Select
an item then press <Enter> to display the configuration options.
2.7.1
Setup Administrator Password
Select this item to set or change the Administrator password. No password is
installed by default.
To set a Administrator Password:
1.
2.
3.
Select the Setup Administrator Password item and press <Enter>.
From the password box, type a password composed of letters and/or
numbers, then press <Enter>.
Confirm the password when prompted.
To change the administrator password, select the Setup Administrator Password
then press <Enter>. Type the current password then press <Enter>. Follow the
steps of setting a administrator password from 2 to 3.
To clear the administrator password, select the Setup Administrator Password then
press <Enter>. Type the current password then press <Enter>. Type <Enter> when
prompted.
4-24
Chapter 4: BIOS setup
2.7.2
User Password
Select this item to set or change the user password. No password is installed by
default.
To set a User Password:
1.
2.
3.
Select the User Password item and press <Enter>.
From the password box, type a password composed of letters and/or
numbers, then press <Enter>.
Confirm the password when prompted.
To change the user password, select the User Password then press <Enter>.
Type the current password then press <Enter>. Follow the steps of setting a user
password from 2 to 3.
To clear the user password, select the User Password then press <Enter>. Type
the current password then press <Enter>. Type <Enter> when prompted.
ASUS P5LD2-C/IPAT
4-25
4.8
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.
Save Changes and Reset
Discard Changes and Reset
Reset the system after
saving the changes.
Save Options
Save Changes
Discard Changes
Restore Defaults
Boot Override
Pressing <Esc> does not immediately exit this menu. Select one of the options
from this menu or <F10> from the legend bar to exit.
Save Changes and Reset
This option allows you to save the changes that you made to the Setup program
and reset the system. After selecting this option, a confirmation appears. When you
select this option, a confirmation window appears. Select OK to save changes and
reset.
Discard Changes and Reset
Select this option only if you do not want to save the changes that you made
to the Setup program and reset the system. If you made changes to fields other
than System Date, System Time, and Password, the BIOS asks for a confirmation
before exiting.
Save Changes
This option allows you to save all the changes you made so far. After selecting this
option, a confirmation appears. Select OK to save the changes.
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.
4-26
Chapter 4: BIOS setup
Restore 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 Save Changes and Exit
or make other changes before saving the values to the non-volatile RAM.
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4-27
4-28
Chapter 4: BIOS setup
This chapter describes the contents
of the support CD that comes with the
motherboard package.
5
Software
support
Chapter summary
5.1
5.2
5
Installing an operating system.................................................... 5-1
Support CD information............................................................... 5-1
ASUS P5LD2-C/IPAT
5.1
Installing an operating system
This motherboard supports Windows® 32-bit XP / 64-bit XP operating systems
(OS). Always install the latest OS version and corresponding updates to maximize
the features of your hardware.
5.2
•
Motherboard settings and hardware options vary. Use the setup
procedures presented in this chapter for reference only. Refer to your OS
documentation for detailed information.
•
Ensure that you install the Windows® XP Service Pack2 or later versions
before installing the drivers for better compatibility and system stability.
•
Intel® Platform Administration Technology (IPAT) application programs are
included in an IPAT SCD that came with the motherboard package. Check
the IPAT SCD for details..
Support CD information
The support CD that came with the motherboard package contains the drivers, and
utilities that you can install to avail all motherboard features.
The contents of the support CD are subject to change at any time without
notice. Visit the ASUS website (www.asus.com) for updates.
5.2.1
Running the support CD
Place the support CD to the optical drive. The CD automatically displays the
Drivers menu if Autorun is enabled in your computer.
Click an icon to display
support CD/motherboard
information
Click an item to install
ASUS P5LD2-C/IPAT
5-
If Autorun is NOT enabled in your computer, browse the contents of the support
CD to locate the file ASSETUP.EXE from the BIN folder. Double-click the
ASSETUP.EXE to run the CD.
5.2.2
Drivers menu
The drivers menu shows the available device drivers if the system detects installed
devices. Install the necessary drivers to activate the devices.
ASUS InstALL - Drivers Installation Wizard
Installs the ASUS InstALL - Drivers Installation Wizard.
Intel Chipset Inf Update Program
Installs the Intel Chipset Inf Update Program.
Realtek Audio Driver
Install the Realtek Audio Driver.
5-
Chapter 5: Software support
5.2.3
ASUS Contact information
Click the Contact tab to display the ASUS contact information. You can also find
this information on the inside front cover of this user guide.
5.2.4
Other information
The icons on the top right corner of the screen give additional information on the
motherboard and the contents of the support CD. Click an icon to display the
specified information.
Motherboard Info
Displays the general specifications of the motherboard.
ASUS P5LD2-C/IPAT
5-
Browse this CD
Displays the support CD contents in graphical format.
Technical support Form
Displays the ASUS Technical Support Request Form that you have to fill out when
requesting technical support.
5-
Chapter 5: Software support
Filelist
Displays the contents of the support CD and a brief description of each in text
format.
ASUS P5LD2-C/IPAT
5-
5-
Chapter 5: Software support
The Appendix describes the CPU
features that the motherboard supports.
A
CPU features
Chapter summary
A.1
A.2
A
Enhanced Intel SpeedStep® Technology (EIST).........................A-1
Intel® Hyper-Threading Technology............................................A-2
ASUS P5LD2-C/IPAT
A.1
A.1.1
Enhanced Intel SpeedStep®
Technology (EIST)
•
The motherboard comes with a BIOS file that supports EIST. You can
download the latest BIOS file from the ASUS website (www.asus.com/
support/download/) if you need to update the BIOS. See Chapter 4 for
details.
•
Visit www.intel.com for more information on the EIST feature.
System requirements
Before using EIST, check your system if it meets the following requirements:
•
Intel® Pentium® 4 processor with EIST support
•
Operating system with EIST support (Windows® XP SP2/Windows® Server
2003 SP1/Linux 2.6 kernel or later versions)
•
BIOS file with EIST support
A.1.2
Using the EIST
To use the EIST feature:
1.
2.
3.
4.
5.
6.
7.
Turn on the computer, then enter the BIOS Setup.
Go to the Advanced Menu, highlight CPU Configuration,
then press <Enter>.
Set the Intel(R) SpeedStep Technology item to [Enabled],
then press <Enter>. See page 4-12 for details.
Press <F10> to save your changes and exit the BIOS setup.
After the computer restarts, right click on a blank space on the desktop, then
select Properties from the pop-up menu.
When the Display Properties window appears, click the Screen Saver tab.
Click the Power button on the
Monitor power section to open the
Power Options Properties window.
ASUS P5LD2-C/IPAT
A-
8.
9.
On the Power schemes section, click ,
then select any option except Home/Office
Desktop or Always On.
Click Apply, then click OK.
10. Close the Display Properties window.
After you adjust the power scheme, the CPU
internal frequency slightly decreases when
the CPU loading is low.
The screen displays and procedures may vary depending on the operating
system.
A.2
Intel® Hyper-Threading Technology
•
The motherboard supports Intel® Pentium® 4 LGA775 processors with
Hyper-Threading Technology.
•
Hyper-Threading Technology is supported under Windows® XP/2003 Server
and Linux 2.4.x (kernel) and later versions only. Under Linux, use the
Hyper-Threading compiler to compile the code. If you are using any other
operating systems, disable the Hyper-Threading Techonology item in the
BIOS to ensure system stability and performance.
•
Installing Windows® XP Service Pack 1 or later version is recommended.
•
Ensure to enable the Hyper-Threading Technology item in BIOS before
installing a supported operating system.
•
For more information on Hyper-Threading Technology, visit www.intel.
com/info/hyperthreading.
Using the Hyper-Threading Technology
To use the Hyper-Threading Technology:
1.
2.
3.
A-
Install an Intel® Pentium® 4 LGA775 CPU that supports Hyper-Threading
Technology.
Power up the system and enter the BIOS Setup. Under the Advanced Menu,
ensure that the item Hyper‑Threading Technology is set to [Enabled].
The BIOS item appears only if you installed a CPU that supports
Hyper­‑Threading Techonology.
Restart the computer.
Appendix: CPU features