ASUS P4P800-MX User Manual
P4P800-MX
User Guide
Motherboard
Checklist
E1880
Revised Edition V3
January 2005
Copyright © 2005 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language in any form or by any means, except documentation kept by the purchaser for
backup purposes, without the express written permission of ASUSTeK COMPUTER INC.
(“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modified or
altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2)
the serial number of the product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
OR CONDITIONS OF MERCHANTABILITY OR FITNESS 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 ............................................................................................v
Safety information ..........................................................................vi
About this guide............................................................................. vii
ASUS contact information ............................................................ viii
P4P800-MX specifications summary..............................................ix
Chapter 1: Product introduction
1.1 Welcome! ........................................................................... 1-2
1.2 Package contents............................................................... 1-2
1.3 Special features.................................................................. 1-2
1.4 Motherboard components .................................................. 1-4
1.5 Motherboard layout ............................................................ 1-8
1.6 Before you proceed ............................................................ 1-9
1.7.1 Placement direction ............................................. 1-10
1.7.2 Screw holes ......................................................... 1-10
1.7 Motherboard installation ................................................... 1-10
1.8 Central Processing Unit (CPU)..........................................1-11
1.8.1 Overview ...............................................................1-11
1.8.2 Installing the CPU ................................................ 1-12
1.9 System memory ............................................................... 1-13
1.9.1 Memory configurations ........................................ 1-13
1.9.2 Installing a DIMM ................................................. 1-15
Features
1.10 Expansion slots ................................................................ 1-16
1.10.1 Standard interrupt assignments ........................... 1-16
1.10.2 IRQ assignments for this motherboard ................ 1-16
1.10.3 PCI slots .............................................................. 1-17
1.11 Jumpers............................................................................ 1-18
1.12 Connectors ....................................................................... 1-20
Chapter 2: BIOS information
2.1 Managing and updating your BIOS .................................... 2-2
2.1.1 Creating a bootable floppy disk ............................. 2-2
2.1.2 Using AFUDOS to update the BIOS ...................... 2-2
2.1.3 Using ASUS EZ Flash to update the BIOS ............ 2-3
2.1.4 Recovering the BIOS with CrashFree BIOS 2 ....... 2-4
2.2 BIOS Setup program .......................................................... 2-6
2.2.1 BIOS menu screen ................................................ 2-7
2.2.2 Menu bar................................................................ 2-7
2.2.3 Navigation keys ..................................................... 2-7
2.2.4 Menu items ............................................................ 2-8
iii
Contents
Safeguards
2.2.5 Sub-menu items..................................................... 2-8
2.2.6 Configuration fields ................................................ 2-8
2.2.7 Pop-up window ...................................................... 2-8
2.2.8 Scroll bar................................................................ 2-8
2.2.9 General help .......................................................... 2-8
2.3 Main menu.......................................................................... 2-9
2.3.1 System Time .......................................................... 2-9
2.3.2 System Date .......................................................... 2-9
2.3.3 Legacy Diskette A
Legacy Diskette B .................................................. 2-9
2.3.4 Language ............................................................... 2-9
2.3.5 Primary/Secondary/Third/Fourth
IDE Master/Slave ................................................. 2-10
2.3.6 IDE Configuration .................................................2-11
2.3.7 System Information .............................................. 2-12
2.4 Advanced menu ............................................................... 2-13
2.4.1 USB Configuration ............................................... 2-13
2.4.2 CPU Configuration ............................................... 2-15
2.4.3 Chipset................................................................. 2-16
2.4.4 Onboard Devices Configuration........................... 2-18
2.4.5 PCI PnP ............................................................... 2-19
2.5 Power menu ..................................................................... 2-21
2.5.1 Suspend Mode..................................................... 2-21
2.5.2 Repost Video on S3 Resume............................... 2-21
2.5.3 ACPI 2.0 Support ................................................. 2-21
2.5.4 ACPI APIC Support.............................................. 2-21
2.5.5 APM Configuration............................................... 2-22
2.5.6 Hardware Monitor ................................................ 2-23
2.6 Boot menu ........................................................................ 2-25
2.6.1 Boot Device Priority ............................................. 2-25
2.6.2 Boot Settings Configuration ................................. 2-26
2.6.3 Security ................................................................ 2-27
2.7 Exit menu ......................................................................... 2-29
Chapter 3: Software support
3.1 Install an operating system................................................. 3-2
3.2 Support CD information...................................................... 3-2
3.2.1 Running the support CD ........................................ 3-2
3.2.2 Drivers menu ......................................................... 3-3
3.2.3 Utilities menu ......................................................... 3-3
3.2.4 ASUS Contact Information..................................... 3-4
iv
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received including interference
that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with
manufacturer’s instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the
graphics card is required to assure compliance with FCC regulations.
Changes or modifications to this unit not expressly approved by the
party responsible for compliance could void the user’s authority to
operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise
emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.
This class B digital apparatus complies with Canadian ICES-003.
v
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.
vi
About this guide
Conventions used in this guide
To make sure that you perform certain tasks properly, take note of the
following symbols used throughout this manual.
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: Information that you MUST follow to complete a
task.
NOTE: Tips and additional information to aid in completing a task.
Where to find more information
Refer to the following sources for additional information and for product
and software updates.
1. ASUS Websites
The ASUS websites worldwide provide updated information on ASUS
hardware and software products. The ASUS websites are listed in the
ASUS Contact Information on page viii.
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.
vii
ASUS contact information
ASUSTeK COMPUTER INC. (Asia-Pacific)
Address 15 Li-Te Road, Peitou, Taipei, Taiwan 112
Telephone +886-2-2894-3447
Web site www.asus.com.tw
Technical Support
Telephone(MB/Component) +886-2-2890-7121 (English)
(Notebook) +886-2-2890-7122 (English)
(Server/PC) +886-2-2890-7123 (English)
(Networking) +886-2-2890-7902 (English)
Support fax +886-2-2890-7698
ASUS COMPUTER INTERNATIONAL (America)
Address 44370 Nobel Drive, Fremont, CA 94538, USA
Fax +1-510-608-4555
E-mail tmd1@asus.com
Web site usa.asus.com
Technical Support
Telephone (General) +1-502-995-0883
(Notebook) +1-510-739-3777
Support fax +1-502-933-8713
Support e-mail tsd@asus.com
ASUS COMPUTER GmbH (Germany and Austria)
Address Harkort Str. 25, D-40880 Ratingen, Germany
Telephone +49-2102-95990
Fax +49-2102-959911
Online contact www.asuscom.de/sales
Technical Support
Telephone +49-2102-95990
Fax +49-2102-959911
Online support www.asuscom.de/support
Web site www.asuscom.de/news
viii
P4P800-MX specifications summary
CPU
Chipset
Front Side Bus (FSB)
Memory
Expansion slots
Storage
Audio
Support the Intel
478-pin package on 90 nm process
Supports Intel® Hyper-Threading technology
Intel 865GV
Intel ICH5
800/533/400 MHz
Dual-channel memory architecture
4 x 184-pin DDR DIMM sockets for up to 4GB
system memory using PC3200/PC2700/PC2100
unbuffered non-ECC DDR DIMMs
3 x PCI
2 x UltraATA100/66/33 connectors
2 x Serial ATA connectors
ADI AD1888 SoundMAX 6-channel audio CODEC
S/PDIF out support
®
Pentium® 4 processor in the
LAN
VGA
Special features
Rear panel I/O
Realtek
controller
Intel® Extreme Graphics
ASUS MyLogo™
ASUS CrashFree BIOS 2
ASUS EZ Flash
1 x Video port
1 x Parallel port
1 x Serial port
1 x PS/2 keyboard port
1 x PS/2 mouse port
4 x USB 2.0 ports
1 x RJ-45 port
Line In/Line Out/Microphone ports
®
RTL8101L 10/100 Fast Ethernet LAN
(continued on the next page)
ix
P4P800-MX specifications summary
Internal I/O
BIOS features
Industry standard
Manageability
Power Requirement
Form Factor
2 x USB 2.0 connector for 4 additional USB ports
CPU/Chassis fan connectors
20-pin/4-pin ATX 12V power connectors
GAME/MIDI connector
S/PDIF Out connector
CD/AUX audio connectors
Front panel audio connector
20-pin Panel connector
4Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0,
SM BIOS 2.3, ASUS EZ Flash, CrashFree BIOS 2,
ASUS MyLogo™
PCI 2.2, USB 2.0
WfM 2.0, DMI 2.0, WOL/WOR by PME
ATX power supply (with 4-pin 12V plug)
Micro ATX form factor: 9.6 in x 9.6 in (24.5 cm x 24.5 cm)
Support CD
contents
* Specifications are subject to change without notice.
Device drivers
ASUS PC Probe
ASUS LiveUpdate
ASUS Flash Utility
x
Chapter 1
This chapter describes the features of the
P4P800-MX motherboard. It includes brief
descriptions of the motherboard components,
and illustrations of the layout, jumper settings,
and connectors.
Product introduction
1.1Welcome!
Thank you for buying the ASUS® P4P800-MX motherboard!
The ASUS P4P800-MX motherboard delivers a host of new features and latest
technologies making it another standout in the long line of ASUS quality
motherboards!
®
The P4P800-MX incorporates the Intel
coupled with the Intel® 865GV chipset to set a new benchmark for an effective
desktop platform solution.
Supporting up to 4GB of system memory with PC3200/2700/2100 DDR SDRAM,
high-resolution graphics via Extreme Graphics 2, Serial ATA support, USB 2.0,
and 6-channel audio features, the P4P800-MX is your affordable vehicle in the
world of power computing!
Before you start installing the motherboard, and hardware devices on it, check the
items in your package with the list below.
Pentium® 4 Processor in 478-pin package
1.2Package contents
Check your P4P800-MX package for the following items.
ASUS P4P800-MX motherboard
Micro-ATX form factor: 9.6 in x 9.6 in (24.5 cm x 24.5 cm)
ASUS P4P800-MX series support CD
UltraATA100/66 cable
Floppy disk cable
I/O shield
Bag of extra jumper caps
User Guide
If any of the above items is damaged or missing, contact your retailer.
1.3 Special features
Latest processor technology
The motherboard supports the Intel® Pentium® 4 Processor with 512KB L2 cache and an
800/533/400 MHz system bus. The CPU features the Intel Hyper-Threading
Technology and a new power design that allows up to 3.2GHz core frequencies. The
motherboard also supports the next generation Intel Prescott CPU. See page 1-11.
1-2
Chapter 1: Product introduction
Intel® Extreme Graphics
The motherboard comes with the revolutionary graphics core that delivers intense,
realistic 3D graphics with sharp images, fast rendering, smooth motion, and
incredible detail. This unique architecture enables balanced memory usage
between graphics and the system for optimal performance.
Dual-channel DDR400 memory support
The motherboard supports up to 4GB of system memory using PC3200/2700/2100
non-ECC DDR DIMMs to deliver up to 6.4GB/s data transfer rate for the latest 3D
graphics, multimedia, and Internet applications. See page 1-13.
Serial ATA technology
The motherboard bundles the new Serial ATA technology through the SATA
interfaces onboard. The SATA specification allows for thinner, more flexible cables
with lower pin count, reduced voltage requirement, up to 150 MB/s data transfer
rate, and software compatibility with the legacy Parallel ATA. See page 1-22.
CrashFree BIOS 2
This feature allows you to restore the original BIOS data from the support CD, or
from a bootable floppy disk, when the BIOS codes and data are corrupted. This
protection eliminates the need to buy a replacement ROM chip. See page 2-5.
ASUS MyLogo™
This new feature present in the motherboard allows you to personalize and add
style to your system with customizable boot logos. The ASUS MyLogo™ is
automatically installed when you install the ASUS Update utility from Utilities menu
in the support CD.
ASUS EZ Flash BIOS
With the ASUS EZ Flash, you can easily update the system BIOS even before
loading the operating system. No need to use a DOS-based utility or boot from a
floppy disk. See page 2-4.
USB 2.0 technology
The motherboard implements the new Universal Serial Bus (USB) 2.0
specification, extending the connection speed from 12 Mbps on USB 1.1 to a fast
480 Mbps on USB 2.0. See page 1-27.
ASUS P4P800-MX motherboard
1-3
6-channel digital audio
The ADI AD1888 AC’97 audio CODEC is onboard to provide 6-channel audio
playback for 5.1 surround sound and over 90dB dynamic range. A digital audio
connector is onboard to accommodate an optional S/PDIF (Sony/Philips Digital
Interface) Out module.
1.4 Motherboard components
Before you install the motherboard, learn about its major components and
available features to facilitate the installation and future upgrades. Refer to the
succeeding pages for the component descriptions.
1. ATX 12V connector
2. CPU socket
3. North Bridge controller
4. DDR DIMM sockets
5. ATX power connector
6. Super I/O controller
7. Floppy disk connector
8. IDE connectors
9. Flash EEPROM
10. SATA connectors
11. South Bridge controller
12. Standby power LED
13. Audio CODEC
14. PCI slots
See page 1-6 for the specifications of each component.
15. LAN controller
16. PS/2 mouse port
17. Parallel port
18. RJ-45 port
19. Line In jack
20. Line Out jack
21. Microphone jack
22. USB 2.0 ports 3 and 4
23. USB 2.0 ports 1 and 2
24. VGA port
25. Serial port
26. Keyboard port
1-4
Chapter 1: Product introduction
1
2
43
5
6
7
8
15
14
13
16
12
17 18
11
9
10
19
20
21
26
ASUS P4P800-MX motherboard
25
24
23
22
1-5
1
ATX 12V connector . This power connector connects the 4-pin 12V plug from
the ATX 12V power supply.
2
CPU socket. A 478-pin surface mount, Zero Insertion Force (ZIF) socket for
®
the Intel
Pentium® 4 Processor, with 800/533/400 MHz system bus that allows
6.4GB/s, 4.3GB/s, and 3.2GB/s data transfer rates, respectively.
3
North bridge controller. The Intel
®
865GV Memory Controller Hub provides
the processor interface with 800/533/400 MHz frequency , system memory
interface at 400/333/266MHz operation. The GMCH interconnects to the
south bridge ICH5 via the Intel® Hub Architecture.
4
DDR DIMM sockets. These four 184-pin DIMM sockets support up to 4GB
system memory using unbuffered non-ECC PC3200/2700/2100 DDR DIMMs.
5
ATX power connector . This 20-pin connector connects to an ATX power
supply . The power supply must have at least 1A on the +5V standby lead
(+5VSB).
6
Super I/O controller. This Winbond Low Pin Count (LPC) interface provides
the commonly used Super I/O functionality . The chipset supports a highperformance floppy disk controller for a 360K/720K/1.44M/2.88M floppy disk
drive, a multi-mode parallel port, two standard compatible UARTs, and a Flash
ROM interface. This controller also integrates the ASIC for PC health
monitoring.
7
8
9
10
11
Floppy disk connector . This connector accommodates the provided ribbon
cable for the floppy disk drive. One side of the connector is slotted to prevent
incorrect insertion of the floppy disk cable.
IDE connectors. These dual-channel bus master IDE connectors support
Ultra A TA100/66/33, PIO Modes 0~4 IDE devices. Both the primary (blue) and
secondary (black) connectors are slotted to prevent incorrect insertion of the
IDE ribbon cable.
Flash EEPROM. This 4Mb firmware contains the programmable BIOS
program.
SATA connectors. These connectors support Serial ATA HDDs and allows
for up to 150MB/s data transfer rate, faster than the standard Parallel AT A
by 17MB/s.
South bridge controller. The fifth-generation Intel I/O Controller Hub
(ICH5) is a subsystem that integrates various I/O functions including 2channel ATA100 bus master IDE controller, up to eight USB 2.0/1.1 ports, I/
O APIC, SMBus 2.0 controller, LPC interface, AC’97 2.2 interface, and PCI
2.2 interface. The ICH5 also contains the necessary arbitration and
buffering for efficient utilization of these interfaces.
1-6
12
Standby power LED. This LED lights up if there is a standby power on the
motherboard. This LED acts as a reminder to turn off the system power before
plugging or unplugging devices.
Chapter 1: Product introduction
13
Audio CODEC. The ADI AD1888 is an AC’97 CODEC that allows
6-channel audio playback. The audio CODEC provides six DAC channels
for 5.1 surround sound, S/PDIF output, AUX and Line In stereo inputs,
integrated headphone amplifier, and supports greater than 90dB dynamic
range.
14
15
16
17
18
19
20
21
PCI slots. These three 32-bit PCI 2.2 expansion slots support bus master
PCI cards like SCSI or LAN cards with 133MB/s maximum throughput.
LAN controller . This Realtek 8101L LAN controller supports 10/100 Mdps
Fast Ethernet networking.
PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.
Parallel port. This 25-pin port connects a parallel printer, a scanner, or
other devices.
RJ-45 port. This port allows connection to a Local Area Network (LAN)
through a network hub.
Line In jack. This Line In (light blue) jack connects a tape player or other
audio sources. In 6-channel mode, the function of this jack becomes Bass/
Center .
Line Out jack. This Line Out (lime) jack connects a headphone or a
speaker . In 6-channel mode, the function of this jack becomes Front
Speaker Out.
Microphone jack. This Mic (pink) jack connects a microphone. In 6-channel
mode, the function of this jack becomes Rear Speaker Out.
The functions of the Line Out, Line In, and Microphone jacks change when you
select the 6-channel audio configuration as shown in the following table:
Audio 2, 4 or 6-channel configuration
Headphone/
2-Speaker 4-Speaker 6-Speaker
Light Blue Line In Line In Bass/Center
Lime Line Out Front Speaker Out Front Speaker Out
Pink Mic In Rear Speaker Out Rear Speaker Out
22
USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports
are available for connecting USB 2.0 devices.
23
USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports
are available for connecting USB 2.0 devices.
24
25
VGA port. This port connects a VGA monitor.
Serial port. This 9-pin COM1 port is for pointing devices or other serial
devices.
26
PS/2 keyboard port. This purple connector is for a PS/2 keyboard.
ASUS P4P800-MX motherboard
1-7
1.5 Motherboard layout
24.5cm (9.6in)
PS/2KBMS
T: Mouse
B: Keyboard
COM1
KBPWR1
Socket 478
PARALLEL PORT
CHA_FAN1
CPU_FAN
I/O
Super
VGA1
USB1
USB2
USB2.0
T: USB3
B: USB4
Top:Line In
Center:Line Out
Below:Mic In
RTL8101L
FP_AUDIO1
AD1888
CODEC
USBPW12
USBPW34
Top:
RJ-45
ATX12V1
CD1
AUX1
SPDIF1
PCI1
PCI2
SB_PWR1
PCI3
Intel
865GV
Memory
Controller
Hub
USB56
USBPW56
ATX Power Connector
DDR DIMM_A1 (64 bit,184-pin module)
DDR DIMM_A2 (64 bit,184-pin module)
DDR DIMM_B2 (64 bit,184-pin module)
DDR DIMM_B1 (64 bit,184-pin module)
P4P800-MX
PRI_IDE1
CR2032 3V
Lithium Cell
CMOS Power
CLRTC1
Hub
4Mbit
Firmware
PANEL1
Intel
ICH5
USBPW78
USB78
SATA2
CHASSIS1
SATA1
GAME1
FLOPPY1
24.5cm (9.6in)
SEC_IDE1
1-8
Chapter 1: Product introduction
1.6 Before you proceed
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
1. Unplug the power cord from the wall socket before touching any
component.
2. 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.
3. Hold components by the edges to avoid touching the ICs on them.
4. Whenever you uninstall any component, place it on a grounded antistatic
pad or in the bag that came with the component.
5. 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.
When lit, the standby power LED (SB_PWR1) indicates that the system is ON,
in sleep mode, or in soft-off mode, a reminder that you should shut down the
system and unplug the power cable before removing or plugging in any
motherboard component.
P4P800-MX
®
P4P800-MX Onboard LED
ON
Standby
Power
SB_PWR1
OFF
Powered
Off
ASUS P4P800-MX motherboard
1-9
1.7 Motherboard installation
Before you install the motherboard, study the configuration of your chassis to
ensure that the motherboard fits into it. The motherboard uses the micro-ATX form
factor that measures 9 inches x 9 inches (24.5 cm x 24.5 cm).
Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so may cause you physical injury and damage
motherboard components.
1.7.1 Placement direction
When installing the motherboard, make sure that you place it into the chassis in
the correct orientation. The edge with external ports goes to the rear part of the
chassis as indicated in the image below.
1.7.2 Screw holes
Place eight (8) screws into the holes indicated by circles to secure the
motherboard to the chassis.
Do not overtighten the screws! Doing so may damage the motherboard.
Place this side towards
the rear of the chassis.
1-10
Chapter 1: Product introduction
1.8 Central Processing Unit (CPU)
1.8.1 Overview
The motherboard comes with a surface mount 478-pin Zero Insertion Force (ZIF)
socket. The socket is designed for the Intel® Pentium® 4 Processor in the 478-pin
package with 512KB L2 cache. This processor supports 800/533/400MHz front
side bus (FSB), and allows data transfer rates of up to 6.4GB/s. The socket will
also support the Intel Prescott CPU when available.
Note in the illustration that the CPU has a
gold triangular mark on one corner. This
mark indicates the processor Pin 1 that
should match a specific corner of the
CPU socket.
Incorrect installation of the CPU into the socket may bend the pins and
severely damage the CPU!
Notes on Intel® Hyper-Threading Technology
1. This motherboard supports Intel Pentium 4 CPUs with Hyper-Threading
Technology.
2. Hyper-Threading Technology is supported under Windows XP and later
versions only . If you are using any other operating systems, disable the
Hyper-Threading Techonology item in BIOS to ensure system stability and
performance.
Gold Mark
3. It is recommended that you install WinXP Service Pack 1.
4. Make sure to enable the Hyper-Threading Technology item in BIOS before
installing a supported operating system.
5. For more information on Hyper-Threading Technology , visit www.intel.com/
info/hyperthreading.
To use the Hyper-Threading Technology on this motherboard:
1. Buy an Intel Pentium 4 CPU that supports Hyper-Threading Technology. Install
the CPU.
2. Power up the system and enter BIOS Setup (see Chapter 2). Under the
Advanced Menu, make sure that the item Hyper-Threading Technology is set
to Enabled. The item appears only if you installed a CPU that supports HyperThreading Techonology.
3. Reboot the computer.
ASUS P4P800-MX motherboard
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1.8.2 Installing the CPU
Follow these steps to install a CPU.
1. Locate the 478-pin ZIF socket on the motherboard.
2. Unlock the socket by pressing the
lever sideways, then lift it up to a
90°-100° angle.
Make sure that the socket lever is
lifted up to 90°-100° angle,
otherwise the CPU does not fit in
completely.
3. Position the CPU above the socket
such that its marked corner matches
the base of the socket lever.
Socket Lever
90 -100
Gold Mark
4. Carefully insert the CPU into the
socket until it fits in place.
The CPU fits only in one correct orientation. DO NOT force the CPU into the
socket to prevent bending the pins and damaging the CPU!
5. When the CPU is in place, push down
the socket lever to secure the CPU.
The lever clicks on the side tab to
indicate that it is locked.
6. Install a CPU heatsink and fan
following the instructions that came
with the heatsink package.
7. Connect the CPU fan cable to the
CPU_FAN1 connector on the
motherboard.
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Chapter 1: Product introduction
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