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problem with power supply and motherboard

Discussion in 'Hardware' started by ru8yr3d, Dec 25, 2009.

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  1. ru8yr3d

    ru8yr3d Thread Starter

    Jul 27, 2002
    I replaced a motherboard, processor and memory. All should work with each other. I got everything connected and cannot get the power button to work. I have tried it every different combination that I possibly can. The led on the mb is on. Any suggestions? I can't even get it to do anything. This computer worked until I took out the old parts and replaced them wiht new. Is it possible the MB is bad?
  2. Alex Ethridge

    Alex Ethridge

    Apr 10, 2000
    Yes, the board could be bad; but, more testing is in line before deciding that.

    Are you certain you have the power-on switch connected to the proper pins on the board? Thoroughly checking this is a must. Study it carefully.

    Is it possible you have the CMOS-clear jumper set to 'clear'? I have bought boards that had this setting out of the box. I never could figure why they would do that; but, they did.

    Are you certain the processor is fully seated into its socket? And, are you certain there are no bent pins?

    If you have checked all of the above and found nothing amiss, disconnect everything from the board and remove all add-in cards and see if it will power up.
  3. dustyjay


    Jan 23, 2003
    First Name:
    how about giving us some specs on the parts.
  4. win2kpro


    Jul 19, 2005
    dustyjay is correct in asking for a parts list.

    You need to post your system component specs. Motherboard; EXACT make, model and revision (if applicable). Processor; EXACT make, model and stepping. Memory; EXACT make and model. Graphics Card (if installed); EXACT make and model. Power Supply; EXACT make and model. Provide links to the components.

    No one can possibly diagnose a problem without knowing the EXACT components you used in the build.
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