Question about Soyo TechAID POST Diagnostic card w manual--PCI Graphic Card

1 Answer

I have a soyo techaid diagnostic card. Installed into the PCI slot and started the computer. It shows a D4 error. According to the manual, This error code is ...TO comeback to real mode. Execute OEM patch. Stack. What does this mean?

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  • cindynsg Oct 06, 2010

    This is a Medion Multimedia PC (MEDION Akoya P5300 D) With an 686 AMIBIOS). Im using a SOYO techaid diagnostic card to troubleshoot . The boot up process stops at this D4 error. I've tried swapping ram and removing ram to no evail. there are 2 512mb rams and 2 1gb ram . I tried just the 1gb and thw 512mb seperately without luck. I have also tried two 1gb from another machine without any luck. I thought it might be the ram but at this point, think the problem may be before this point.

  • cindynsg Oct 06, 2010

    All I can find on the mother board in MCI 8710126332. It has 3 ata power in the right lower corner...Amd processor, 4 ram slots on board sound, seperate video card 350w power supply. This is a friends machine. he asked me to fix it.

  • cindynsg Oct 06, 2010

    Is there a way to send a picture to you?

  • cindynsg Oct 06, 2010

    Is there a way I can sen a picture of the processor to figure out what kind it is?

  • cindynsg Oct 06, 2010

    I sent the pictures to you in two different emails. and found out from the owner some specs.
    It is an AMD Phenom X3 8450 Triple core. ATI radeon hd 3450 Graphics card with 256 mb sdram dvi-i,D-sub vga and tv out. 640 gb hard drive s-ata 300 intC
    To: Dennis Wendling
    Sent: Weerface 7200 rpm 16 mb cache. 3072 mb ddr2 sdram 667mhz 64 bits dual channel memoryd, Oct 6, 2010 2:27 pm

  • cindynsg Oct 07, 2010

    Thank you for all your help. I spoke with my friend and ordered the mother board. Your appreciated.

  • cindynsg Oct 07, 2010

    The solution was very helpful and the tech was great! I was able to find the solution the the problem and ordered a mother board.



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Ok what shows D4 error? This appears on the screen itself? The OEM patch part refers to some software patch for the card that updates it for use with your system. Does the machine boot up or does it halt at the error?

Give me some more info here...


Posted on Oct 06, 2010

  • 3 more comments 
  • Tim Grayson
    Tim Grayson Oct 06, 2010

    I see, if you take that techcard out of the system though, will it get past that error, or the error is why you bought the card? It sounds like the motherboard itself is the culprit if you have swapped in ram that you know is good and it still fails, then the northbridge on the motherboard is to blame unfortunately.

    If you have the part # for the board I can try to track one down for you.


  • Tim Grayson
    Tim Grayson Oct 06, 2010

    Yikes ya that is just some generic motherboard, that number doesn't pull up anything at all, anywhere... You can definitely get a good replacement board for the system, I am sure all the components are fine. Do you know what model AMD processor, or at least what socket type? I can recommend some good boards for sure, but I am sure it's the board that's doing it.


  • Tim Grayson
    Tim Grayson Oct 06, 2010

    Sure thing, send it to me at

  • Tim Grayson
    Tim Grayson Oct 06, 2010

    Ah ok, I just replied to your email asking for this info lol, let me update you here. Give me like 4 minutes to find the board..


  • Tim Grayson
    Tim Grayson Oct 06, 2010

    Ok based on the pictures you have sent it is definitely a Micro ATX board as well, as smaller version of a regular motherboard. I would recommend this one, the price is amazing, free shipping, and a super board for sure. Definitely will work with that 8450 you have now:



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