Tech Guide: Diagnosing a PC which will not POST or Start

Discussion in 'Desktop Computers' started by spirit, Apr 15, 2012.

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  1. EINREB

    EINREB Member

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    Yes, I am using a Cooler Master GLITE case, which came with the required standoffs.

    UPDATE Just to check, I installed an older board (ECS A740GM-M) in this new case (using the same hardware), with the pwrsupply, HDs and CD I was using before, and it is running OK right now. So it sould not be the powersupply that is the problem
    Same question remains, which is the bad part, the MoBo or the processor?
     
  2. spirit

    spirit Moderator Staff Member

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    Processors rarely really go bad unless you break one of the pins whilst installing it, so I'd say the motherboard is likely bad.

    Just to make sure it isn't shorting on the case can you try and run the motherboard outside of the case on a cardboard box or a large book or something?
     
  3. EINREB

    EINREB Member

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    Yes, that is what my first thought was too.
    BTW it is hard to force the processor into the socket, as long as you have it oriented correctly and open the lever all the way, it just drops in. At least mine did.
    Before I return the MoBo, I will follow your suggestion and assemble everything outside the case. I tested an other computer that way and even used it for a while before I bought a case and packaged it.

    See what happens.
     
  4. spirit

    spirit Moderator Staff Member

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    Yes I know it's pretty much impossible to install a CPU the wrong way.

    Do try it outside of the case. If that doesn't work, I'd support the view that you have a bad motherboard.
     
  5. EINREB

    EINREB Member

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    UPDATE 2: Now the previously assembled test setup that was working fine, does the same thing as the original assembly: it will not power up! There must be something wrong with the pwrsupply afterall!
    Unfortunately, I do not have a spare available, and have to buy a new one to get this project going. Assembling it outside the case does not make much sense now, I am not gonna use a pwrsupply that is unrelaible. Have to wait until there is some cash available to do buy one, did not count on this possibility.
    Thanks fellows for your advice. Keep you informed as what happens.
     
  6. spirit

    spirit Moderator Staff Member

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    So hang on you put a new build into the case? If so, I reckon the issue is with your case or possibly the I/O shield.
     
  7. EINREB

    EINREB Member

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  8. spirit

    spirit Moderator Staff Member

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    This is the I/O shield plate.

    [​IMG]

    It may cause problems if it's not installed correctly.
     
  9. EINREB

    EINREB Member

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    Thanks, spirit. Yes, I know that shield. Just did not know how it was called.
    The latest failure I had the assembly did not use this shield. I lost it somewhere when I retired the MoBo a year ago. So it can not be that.
    BTW, How can it give troubles?

    Beside getting a new powersupply, the only option I have now is to pull a pwrsupply from one of my working computers and assemble the parts outside the case as you previously suggested.
    I might still do that later on.
     
  10. spirit

    spirit Moderator Staff Member

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    Well what could have happened is the lack of I/O shield could have meant the board was possibly making contact with the bottom of the case and shorting - that may have been the cause.

    My understanding is that the I/O shield does ground the board, so if it's not installed correctly or not installed at all your board may short on the case possibly.

    Yes try re-building the system out of the case using a known working PSU.
     
  11. EINREB

    EINREB Member

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    207
    Thanks. Will do so. Keep you informed as to the results.
     
  12. EINREB

    EINREB Member

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    UPDATE - Got a working PSU and tried the system outside the case. Same result. No signs of life. No POST beeps or anything on the monitor.
    I have send MSI an email requesting a RMA to return the board. Hope that they will honor their Warranty, it is less than 2 months old.
     
  13. spirit

    spirit Moderator Staff Member

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    Sounds to me like you definitely have a bad board then. :( Hopefully MSI will RMA it for you.
     
  14. Calin

    Calin Well-Known Member

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    Best guide ever!
     
  15. spirit

    spirit Moderator Staff Member

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    Thanks, I appreciate it! :)
     
  16. Xwardos

    Xwardos Member

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    very nice....well done mate. you'll be an admin in no time :p
     
  17. spirit

    spirit Moderator Staff Member

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    Thank you! I appreciate it! :)
     
  18. Okedokey

    Okedokey Well-Known Member

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    Necro'd by a spammer.

    Still a stellar guide!
     
  19. spirit

    spirit Moderator Staff Member

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    Thank you! :)
     
  20. Cgoggz56

    Cgoggz56 New Member

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    Awesome guide. I have two laptops that haven't given me trouble with booting, but this is great information to have.
     
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