I repaired an ASRock 775i65G Mobo yesterday

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  • Solder Boy
    Senior Member
    • Nov 2006
    • 178
    #1

    I repaired an ASRock 775i65G Mobo yesterday

    Got this computer from a client couple of days ago with the chief complaint that it booted once and then it wouldn't post at all. It had 4 obvious blown caps on the board around the ATX connector. 1 down between the PCI slot

    Took out the RAM chip to see if the board was still alive sure enough it was because I heard the beep code for missing ram.

    So I replaced all the obvious blown caps, and I checked the board for other ones with the ESR found another 4 more with bad ESR values.

    Did all that repowered the board and voila it booted but then shut off again. So I said a few choice words...

    Well on another ASRock 775 board I fixed earlier in the week, there were two 16v100uf caps down near the bottom made by Teapo and they were bad as well.

    www.bcrelectronics.ca
    Tags: None
    • Harvey
      Badcaps Veteran
      • Apr 2007
      • 264
      #2
      Re: I repaired an ASRock 775i65G Mobo yesterday

      ASrock do tend to use cheap components on most of their boards, giving rise to the problem that failing capacitors stresses the MOSFETs into failure. PCChips boards go the same way.

      Often with ASRock, its cheaper to buy a new motherboard than the cost of the replacement capacitors.

        Comment

        • Solder Boy
          Senior Member
          • Nov 2006
          • 178
          #3
          Re: I repaired an ASRock 775i65G Mobo yesterday

          I know it's usually cheaper in some cases just to buy another motherboard, but I guess this client was stuck and didn't have the means to buy a new motherboard etc and then have to pay to get Windows reinstalled again.

          So I took the challenge on.

          Replacing the caps on this board weren't expensive.. maybe $10 if that.

          Customer is happy she has her puter back and working that is the main thing.

          www.bcrelectronics.ca

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