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Pc starts up and shuts down repeatedly and no video

Just installed a supermicro P4sct ll w/3.4ghz cpu and 4gb pc3200 400 ecc memory, connected are the IDE drive and everything was a snap. after pushing start button, pc runs for 15-20 seconds and shuts down then reboots again and again, no screen to go into setup and no beeps of any kind.Tried using a single stick of ram and tried every troubleshooting technique, I can't see where it may be short circuiting, if you can help, must appreciated.

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First be sure that the ram (ecc)you have purchased is compatible with your motherboard and that it will take a total of 4 gig,make sure you earth yourself out on the case before going inside the pc (static electricity can damage electronic components)check that you have not accidentally loosened any data or power cables, check cpu & fan is seated correctly and working : then

  • put back the old ram and try booting up,(if still no good),
  • put things back to the way it was before the changes,
  • make sure everything is working as before (refer to the above)
  • trying the new ram, if ok
  • change cpu
  • this will identify if it is the ram the cpu, or some other problem
it is a good idea when upgrading the pc to do one thing at a time so that it is easier to identify any problems that crop up.

let me know how you get on
good luck
Terry

Posted on Mar 25, 2008

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