Question about ASUS P4S800-MX Motherboard

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Asus P4S800-MX My keyboard blinks, no bios, no screen. Disconected everything, still the same. My comp tech says board needs to be replaced. Do you recommend anything else? Where can I repalce it? Thank you.

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  • 2 more comments 
  • menorpro Jun 19, 2008

    Also pulled battery to reset bios. Still no help....

  • menorpro Jul 06, 2008

    Thank you for yor support!

    My computer tech guy said its best to get the exact same board with the exact same chipset (sis 963 lua) to insure as best as possible that we don't have to reload all the programs again. Uhgggg!

    Do you confirm with this as I am reluctant to go with the ASUS P4S8X-MX sold at microsource and pcplanetsystem as you recommended because of this and crayeon doesn't let me load the item into the cart...

    Any thoughts on this?

    Thank you!

  • chris502 Sep 15, 2008

    Anybody know where i can get a replacement board?

  • Anonymous Oct 19, 2008

    Hi, i have the same problem whit this type. I have changed the board 3 days ago and have the same problem again!! I have read any postings about this problem with thi Board.



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I would swap the power supply or test the power supply in a known working system. Than do the same for memory & lastly for the CPU. Resetting the bios should cause the onboard graphics card to load instead of an AGP card loading. If you did have an AGP card on the board, remove it. Though you did remove the battery it is still recommended to move the bios jumper to clear for 15 seconds, page 1-15 in you're manual. Than reset the jumper to normal. Again, if you were using the onboard graphics card, you can try adding an AGP 8x/4x, 1.5v card. It may allow display. If nothing helped than replacing the board is the next step.
There is one listed on this link. Scroll to the bottom of the page.
You might want to hurry. Other than EBay I did not find another board for sale.
I did not try to buy this item.
You might have to register to buy the board. Be careful with EBay over seas. Buy a faulty board & it can cost you triple to return it. Return policy not normally specified.
This link will add to cart but it's double the price.
You should be able to use Asus P4V8X-MX MB to run you're current devices.

Good Luck!
Still need something? Just post.

Posted on Jun 20, 2008


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Hi menorpro,
Asus warrants their boards for three years. The average motherboard Co. warranties go for 1 year. The only other Co. that warrants longer is Foxconn. (Lifetime).
I doubt you will find a working P4S800-MX being I couldn't find P4S8X-MX board, (This board is newer).
First bios rev. 03-18-2005 for the P4S8X-MX MB. Yes you will need to reinstall windows. (It's not that big of a deal). Fact upgrading to a faster chipset means speeding up the over all system. While running the same hardware. So no I do not agree with you're tech. If you list all you're parts being used on the P4S800-MX board I'll see what other boards will support you're devices.
Memory, (Max speed MHz, DDR or SDR, how many DIMMS using).
Hard disk drive, (IDE, Model Mfg, size).
Video if any, CPU information
Here are a couple new boards you might want to consider.
These should support all you're devices.
Tiger can warrant the board for 1 year after the Mfg's 1 yr warranty for a price. Or you can go for the 2 yrs additional warranty.
The Biostar P4M80M4 Via Socket 478 MicroATX Motherboard.
Should support all you're devices.

The Biostar P4M900-M4 Motherboard - VIA P4M900, Socket 478 MB is real close to newer standards. DDR2 memory & PCI-Express video & STAT drives.

It's getting harder by the month to find a board to support older devices. Some sites charge more because people do not want to change out their devices. Sooner or later we all have to change. Best we can hope for is the later...

Good Luck menorpro!

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I'm sorry to say that I had much the same problem with a RMA'ed mobo from Asus. The one that came back worked for a short time, and then died.

I can't say that Asus is the only one I've had the same problem with, Intel has done the same. But I kinda expected more from Asus. I did not bother again, I just decided to do a mobo/CPU/memory upgrade at Fry's.


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