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ASUS P4S800D-X Motherboard ATX S478 SIS 655FX 4DDR AGP 5PCI SATA Sound LAN

This product can only be exchanged or replaced with the exact same item.
ASUS P4S800D-X Motherboard ATX S478 SIS 655FX 4DDR AGP 5PCI SATA Sound LAN - 1
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ASUS P4S800D-X Motherboard ATX S478 SIS 655FX 4DDR AGP 5PCI SATA Sound LAN - 14190_accessories.jpg ASUS P4S800D-X Motherboard ATX S478 SIS 655FX 4DDR AGP 5PCI SATA Sound LAN - 14190_box_view.jpg ASUS P4S800D-X Motherboard ATX S478 SIS 655FX 4DDR AGP 5PCI SATA Sound LAN - 14190_io_port.jpg ASUS P4S800D-X Motherboard ATX S478 SIS 655FX 4DDR AGP 5PCI SATA Sound LAN - 14190_package.jpg Customer Photos (0)
Reg. Price: $73.78  CAD
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   Shipping Weight:   4 lbs
   Part #: P4S800D-X

Features    [ Edit | History ]

The ASUS P4S800D-X, based on the SiS 655FX chipset, packs innovative features such as 800MHx FSB, dual-channel DDR 400, AGP 8x, S/PDIF out, Serial ATA, and 8 USB 2.0 ports. Of course, unique ASUS features are also included.

Quick Specs:
Package Contents
  • P4S800D-X Desktop Board
  • User's manual
  • UltraDMA cable
  • FDD cable
  • I/O shield
  • 2 x Serial ATA cable

Support CD:

  • Drivers
  • ASUS PC Probe
  • Trend Micro PC-cillin 2002 anti-virus software (OEM version)
  • ASUS LiveUpdate Utility
Maximum Memory 4 GB
Limited Warranty 3 Year
Processor Supported Pentium 4 (Extreme Edition) Pentium 4 Celeron Celeron D
Total Processor Supported 1
Controller Type Floppy Controller Serial ATA Ultra ATA/133 (ATA-7)
Processor Socket Socket PGA-478
Memory Technology DDR SDRAM
Processor Technology Hyper-Threading Technology
Memory Standard DDR200/PC1600 DDR266/PC2100 DDR333/PC2700 DDR400/PC3200
Width 12"
Depth 9.6"
Front Side Bus 400 MHz 533 MHz 800 MHz
Chipset Manufacturer SiS
Chipset Model 655FX
Number of Memory Slots 4
Number of PCI Slots 5
Audio Channels 5.1
Fast Ethernet Yes
Number of IDE Interfaces 2
Number of SATA Interfaces 2
Number of Total Expansion Slots 6
Number of AGP Slots 1
Network (RJ-45) Yes
Total Number of USB Ports 4
Total Number of Onboard USB Ports 2

Specifications    [ Edit | History ]
     Audio Channels: 5.1
     Sound Controller Manufacturer: Analog Devices
     Sound Controller Model: AD1888
General Information  
     Brand Name: Asus
     Manufacturer: ASUS Computer International
     Manufacturer Part Number: P4S800D-X
     Manufacturer Website Address:
     Product Model: P4S800D-X
     Product Name: P4S800D-X Desktop Motherboard
     Product Type: Desktop Motherboard
I/O Controller  
     Controller Type: Floppy Controller
Serial ATA
Ultra ATA/133 (ATA-7)
I/O Expansions  
     Number of AGP Slots: 1
     Number of PCI Slots: 5
     Number of Total Expansion Slots: 6
     Audio Line In: Yes
     Audio Line Out: Yes
     Microphone Port: Yes
     Network (RJ-45): Yes
     Number of S/PDIF Out Ports: 1
     Number of USB 2.0 Ports: 4
     Parallel Port: Yes
     S/PDIF: Yes
     Serial Port: Yes
     Total Number of USB Ports: 4
     Maximum Memory: 4 GB
     Memory Standard: DDR200/PC1600
     Memory Technology: DDR SDRAM
     Number of Memory Slots: 4
     Additional Information:


  • North Bridge: SIS 655FX
  • South Bridge: SIS 964

Overclocking Features:

  • ASUS JumperFree
  • Adjustable FSB/DDR ratio, fixed AGP/PCI frequencies
  • ASUS C.P.R.(CPU Parameter Recall)CPU, Memory, and AGP voltage adjustable SFS (Stepless Frequency Selection) from 100MHz up to 300MHz at 1MHz increment

Special Features:

  • ASUS EZ Flash
  • ASUS CrashFree BIOS 2
  • ASUS Instant Music Lite
  • ASUS MyLogo2

     Certifications & Standards:

FCC Rules Part 15, Class B Canadian ICES-003

     Package Contents:
  • P4S800D-X Desktop Board
  • User's manual
  • UltraDMA cable
  • FDD cable
  • I/O shield
  • 2 x Serial ATA cable

Support CD:

  • Drivers
  • ASUS PC Probe
  • Trend Micro PC-cillin 2002 anti-virus software (OEM version)
  • ASUS LiveUpdate Utility

Network & Communication  
     Fast Ethernet: Yes
Onboard Interfaces  
     Number of IDE Interfaces: 2
     Number of SATA Interfaces: 2
     Onboard Audio Header: Yes
     Onboard LEDs Header: Yes
     Total Number of Onboard USB Ports: 2
Physical Characteristics  
     Depth: 9.6"
     Width: 12"
Power Description  
     Power Supply Supported: ATX12V
Processor & Chipset  
     Chipset Manufacturer: SiS
     Chipset Model: 655FX
     Front Side Bus: 400 MHz
533 MHz
800 MHz
     Processor Socket: Socket PGA-478
     Processor Supported: Pentium 4 (Extreme Edition)
Pentium 4
Celeron D
     Processor Technology: Hyper-Threading Technology
     Total Processor Supported: 1
     Limited Warranty: 3 Year

ASUS P4S800D-X Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding ASUS P4S800D-X reviews.
Experience: 1 Years
-Dencent overclocking depending on CPU
-Low Price
-Only 2 SATA
This board was a great buy for my P4 3.2Ghz Northwood. OCed to 3.6Ghz with a Zalman CNPS7000B and 2GB of OCZ Platinum PC3200 DDR400 kit. The only concern was that there is only 2 SATA ports but I guess I can't complain because of the price.

Experience: 4 Days
Design is superior to the Foxconn 865A01 , it replaces
Faster, with hyperstreaming engine ,enabled in bios.
Price, half the price, i paid for my old Foxconn.
Not troublesome free initial setup. Difficulty with initial boot, while installing with ram in dual channel. Had to test each dimm seperately,for ram compatibility. Then set all values manually,instead of spd detection. Sata driver must be installed in O.S before drives can become operational.
I'm very happy with this board, so far anyway...
Evereything seems to function as it should.

My old Foxconn motherboard had a Intel 865 chipset,nothing to write home,about.
This board , when installed with a little troubleshooting "elbow grease " works great.
Nothing wrong with the SIS 655 FX chipset, with the latest bios,installed.

Experience: 2 Days
 Verified Owner
Easy replacement for a P4PE2 Motherboard
Doesn't have a 1 GB NIC built in
I needed a replacement for a P4PE2 motherboard and was worried that I would have to rebuild the OS but this installed without a problem. On boot up the OS found all the required updates on the CD and installed everything without a problem. The board has a lot of new features which the old MB didn't have. A very nice motherboard.

Experience: 3 Weeks
 Verified Owner
Way to easy to install...
the port plate on the back of the computer did not fit correctly. could be the case not the plate...
Excellent install. had to change a customers mobo because of leaking capacitors. pulled the chip put it on this board, moved the ram hooked up the drive cables. flicked the switch and BAM perfect working comp right off the bat. he is in love with it. says his whole system is running faster now. another quality ASUS mobo..

Experience: 3 Days
 Verified Owner
Good software bundle, many ram slots.
Poor overclocking options, limited (and confusing) Bios.
I RMA'd this after three days. I would love to comment on Dual Channel RAM but unfortunately RAM slots 3+4 were DOA. I researched high and low to find out what the problem was but in the end she got shipped back to NCIX. The Mobo seems to indicate that you can OC quite easily but that is not the case, and its OC options are limited unless your P4 happens to be unlocked. Having said that, I do like the included Asus utility as it was helpfull in diagnosing the dead ram slots, and the other features in the included utility were decent. It was nice to have all of the temps laid out and various other notes for the mobo. In the end I decided that, for the price, it was worth it to instead get a S754 AMD and a Sempron chip. Better OC, PCI-E or AGP, and usually cheaper.

Experience: 1 Weeks
 Verified Owner
great board for the price to keep those northwoods and 9800s cooking.
ram problems
Great board for agp and s478 components. Im very pleased with how this has worked out for me, my only complaint is that it doesn't like mismatched ram very well at all. I had to underclock my three 512 sticks of pc3200 (ddr400) to 332mhz in order to get stable boots. (see the forum threads). Having so few ram clock speed settings is a problem, as somebody else has noted. Generally poor board to try any overclocking on, as the options are pretty limited.

Experience: 1 Months
 Verified Owner
ASUS reliability. onboard sound. trouble free installation. cheaper than intel chipset boards
none of the bells and whistles of newer boards. drivers need to be installed separately from other each other.
i bought this board for a friend of mine who thought his board had died. after he replaced his board and foung out it was his video card all along that was causing his problems, i bought back from him. i used the opportunity at getting this board at such a cheap price to replace the guts of my sisters old athlon t-bird 1 gig comp. i had some ram lying around and bought a p4 3ghz off ebay. this board was as easy as any other i have worked with to build a computer around. it was perfectly compatible with all of my sister's other hardware. the only thing that was a little annoying was that the drivers don't come in a neat package. there were four different drivers to install off the cd and you kinda don't know what some of them are for and don't know if you really need them.

if you're looking into building a good and cheap computer this would definitely do the trick.

Experience: 5 Weeks
 Verified Owner
Well priced, does the job, lots of stuff included
Color scheme, some inital bios defaults
Great board, did the trick nicely for a buddy's computer, had a problem with the motherboard BSODing when it was set in the default for RAID instead of SATA (on the sata ports). Apart from that, an excellent motherboard, and at a good price for the 478s

Experience: 6 Weeks
 Verified Owner
Cheap, easy to set up
Lacking in features
I used this board to retrofit an old computer in the house, because the other motherboard was fried. It was incredibly easy to integrate into the old case and using all the old parts. The only problem is that it lacked nifty extras, but at that price who can blame the manufacturers for skimping a bit?

Experience: 1 Months
 Verified Owner
Good features for price
Boring-looking asus board
Could ask for more features, if the board wasn't so inexpensive
I used this board to replace one that had died (Caps were bleeding). It was an easy setup and appears to be very stable. I haven't used any of the "easy" overclocking features, but I hear they work well. I would give it a better rating, but its definitely not the best board out there. I Would give it a worse rating, but its soo inexpensive, without being cheap.

Its a great board for people not looking to break records and just want a stable board for everyday computing.

 NCIX Forum Messages

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Messages about ASUS P4S800D-X Motherboard ATX S478 SIS 655FX 4DDR AGP 5PCI SATA Sound LAN

Keeps restarting (Justin_C- Jul 04, 08, 7 Replies) Read this message
AGP Adapter Not Recognized (Winston_W- Jan 18, 07, 0 Replies) Read this message
AGP Adapter Not Recognized (Winston_W- Jan 18, 07, 0 Replies) Read this message
Help (Sung_L- Jan 05, 07, 6 Replies) Read this message
What is better the SIS chipset or the Intel? (Ian_B- Nov 23, 06, 13 Replies) Read this message
SATA2 Incompatible? (Steven_K- Nov 01, 06, 13 Replies) Read this message
SATA with this board (Jeff_F- Sep 30, 06, 2 Replies) Read this message
'overclock failure' --except i didn't. (Kyle_T- Aug 12, 06, 5 Replies) Read this message
Asus-P4S800d-X (Steven_K- Jul 06, 06, 4 Replies) Read this message
How to overclock? (The_gr8_1- Jun 27, 06, 2 Replies) Read this message
cpu temp (Jim_D- Jun 25, 06, 1 Replies) Read this message
SATA150 or SATA300? (Brady_P- Apr 28, 06, 1 Replies) Read this message
pocessor (jake w- Mar 20, 06, 1 Replies) Read this message
having trouble booting up! (Unclefester0001- Feb 10, 06, 1 Replies) Read this message
3.4E Prescot? (slin- Jan 21, 06, 2 Replies) Read this message

Post a New Message  |    All Messages       Browse NCIX Forums

Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.
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First 30 days limited warranty through The remainder of the 3 year warranty is provided directly by the manufacturer.

Video Cards:
All ASUS VGA cards purchased after January 1st, 2001 will carry 3 year warranty services from purchase date. ASUS product warranty is based on the serial number printed. First 30 days limited warranty is through The remainder of the 3 year warranty is provided directly by ASUS. For more details, please visit

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All ASUS audio cards carry 3 year warranty services from purchase date. ASUS product warranty is based on the serial number printed. First 30 days limited warranty is through The remainder of the 3 year warranty is provided directly by ASUS. For more details, please visit

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For ASUS branded notebooks (not including Eee products and Built-on ASUS):

Complete Customer Care Package

One of the industry’s most complete customer care packages offers a level of coverage that adds to the price of competing products:

  • 1 Year Global Warranty (estimated $100 value, FREE)
  • 30-Day Flawless Display Guarantee: If you discover one defective bright dot within 30 days of purchase, ASUS will replace the panel at no cost.
  • Two way free shipping
  • 24/7 tech support: 1-888-678-3688

Accidents Happen

You have extra protection when they happen to your ASUS notebook purchased in the US or Canada. ASUS will fix it or replace it for you at no charge during the first year after purchase in the event of damage from accidental spills, drops, electrical surges, or fire.

  • Warranty covering accidental drops, spills, power surges, and fire damage
  • Target 3 business day turnaround time for repair / replacement; not including receiving and shipping time
  • One-way shipping (from ASUS to the user) at no additional cost
  • 24/7 toll-free phone support
  • One incident covered per notebook


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