M2N-VM DVI shuts off after 3-4 seconds

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  • Half-Saint
    Badcaps Veteran
    • Jan 2010
    • 213
    • Slovenia
    #1

    M2N-VM DVI shuts off after 3-4 seconds

    Hi guys,

    I'm testing this mobo with the CPU, one stick of RAM and a known good PSU. When you turn it on, it'll stay on for 3-4 seconds but it doesn't beep or output anything to the screen, then it simply shuts off. I suspected bad caps (KZG series) so I replaced all of 1500uF 6.3V and most of 820uF 6.3V.

    I marked on the photo the caps that weren't replaced. I reckon they're not essential and the board should POST.

    What else I tried:
    - resetting the CMOS
    - another CPU
    - another PSU

    If you start it without the CPU, it stays on but it doesn't beep.

    Am I flogging a dead horse here?

    Cheers,
    Bojan
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    Tags: None
    • mockingbird
      Badcaps Legend
      • Dec 2008
      • 5484
      • -
      #2
      Re: M2N-VM DVI shuts off after 3-4 seconds

      The caps near the PCI and PCIe slots might be critical caps, but the other ones are USB filter caps and shouldn't prevent the system from turning on.

      My guess is the northbridge is kaput.

      Did you try alternating the RAM between different memory slots?

        Comment

        • Half-Saint
          Badcaps Veteran
          • Jan 2010
          • 213
          • Slovenia
          #3
          Re: M2N-VM DVI shuts off after 3-4 seconds

          I'm running the board without PCI/PCI-e cards so it shouldn't really matter.. I could be wrong tho.

          I tried with different memory modules and slots, also no memory. It's always the same.

            Comment

            • mockingbird
              Badcaps Legend
              • Dec 2008
              • 5484
              • -
              #4
              Re: M2N-VM DVI shuts off after 3-4 seconds

              Looks like the northbridge and southbridge are integrated into one IC.

              Check VRM MOSFETs for shorts. Check IGP MOSFETs for shorts.

              Re-program the socketed BIOS chip.

                Comment

                • Half-Saint
                  Badcaps Veteran
                  • Jan 2010
                  • 213
                  • Slovenia
                  #5
                  Re: M2N-VM DVI shuts off after 3-4 seconds

                  I tried reprogramming the BIOS and it didn't do anything. I'm tossin the board. Thank for the input.

                    Comment

                    • mockingbird
                      Badcaps Legend
                      • Dec 2008
                      • 5484
                      • -
                      #6
                      Re: M2N-VM DVI shuts off after 3-4 seconds

                      ...not before gutting it of all the valuable Samxon, I hope

                        Comment

                        • c_hegge
                          Badcaps Legend
                          • Sep 2009
                          • 5219
                          • Australia
                          #7
                          Re: M2N-VM DVI shuts off after 3-4 seconds

                          Yup. The fault probably is the chipset. nVidia chipsets from that era all have known manufacturing defects.
                          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

                            Comment

                            • Half-Saint
                              Badcaps Veteran
                              • Jan 2010
                              • 213
                              • Slovenia
                              #8
                              Re: M2N-VM DVI shuts off after 3-4 seconds

                              Don't worry, I removed all of my caps as well as the battery, chipset cooler, BIOS chip and jumpers before tossing the board :-)

                                Comment

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