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MSI G31M3-L Recap (MS-7529)

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    MSI G31M3-L Recap (MS-7529)

    I got this board (MSI G31M3-L) for free from a friend of my, it was pulled out from one of his client PC and it has a total of 8 bulged capacitors on it. This board uses 9 TK 6.3V 1000uf caps, 8 out of 9 of them was budged. I have no idea how old was the board since it was pulled out from others people's PC. When I tested it, it refuses to turn on normally, when I short the power pin, it just on-off-on-off repeatedly. Or it will just power on for 1 sec every time I short the power pin. After I recap the motherboard myself, it was working fine again, installed and run windows 7 on it without any prob. Since 1 out of the 9 TK caps from this board looks fine with no bulging or leaks, so I decided to leave it there, wondering would it failed in the future?


    The caps circled in yellow are the location of the bad cap (Which i have replaced)
    The one circled in red is the unaffected TK caps




    The caps I use to replace those bad caps
    Attached Files

    #2
    Re: MSI G31M3-L Recap (MS-7529)

    That one you left there is probably bad, but not visibly showing it (and if not it will fail very soon). You should also replace the blue ones under the CPU heatsink as they usually fail on these motherboards too. I usually use 560uF 4V Polymer caps under there.

    Were your replacement caps HM series? I can't tell from your picture
    Last edited by c_hegge; 05-15-2015, 11:42 PM.
    I love putting bad caps and flat batteries in fire and watching them explode!!

    No wonder it doesn't work! You installed the jumper wires backwards

    Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

    Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

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      #3
      Re: MSI G31M3-L Recap (MS-7529)

      Originally posted by c_hegge View Post
      That one you left there is probably bad, but not visibly showing it (and if not it will fail very soon). You should also replace the blue ones under the CPU heatsink as they usually fail on these motherboards too. I usually use 560uF 4V Polymer caps under there.

      Were your replacement caps HM series? I can't tell from your picture
      That is what I am guessing, I already standby some caps just in case it blows.
      Thanks for the tips on those blue caps under the heatsink.

      Yup, my replacement are HM(M) series

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        #4
        Re: MSI G31M3-L Recap (MS-7529)

        Cool. HM is what I would recommend to replace them.
        I love putting bad caps and flat batteries in fire and watching them explode!!

        No wonder it doesn't work! You installed the jumper wires backwards

        Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

        Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

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          #5
          Re: MSI G31M3-L Recap (MS-7529)

          if you couldn't get result with changing capacitor you must rewrite the bios chip.

          This board and msi g31m3 -l v2 needs bios rewrite for resurrection.

          i did 9 boards.

          Comment


            #6
            Re: MSI G31M3-L Recap (MS-7529)

            My g31m3 works properly but sometimes it don't see usb Hdd and rams were always overheated.
            today i desolder 7 OST caps near the cpu.
            there is no visible faulty i.e . blown ,eruption
            they must be 680 mF but all of are 54 mF.

            there are 1000 mF TK caps below the CPU and near the ram slot.
            also there is no visible faulty .measure on board and i realise something abnormal for another new board. onboard 0.145 mF..must be 3500 or 5000mF

            Desolder and measure them. they have over value. one is 2400 mF other 2800mF.
            default is 1000mF.
            Last edited by mikail13; 07-16-2015, 02:02 PM.

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