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Motherboard Dead? How can you be sure? Johnwill--this one's for you!!!

Discussion in 'Hardware' started by Mulderator, Feb 16, 2007.

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  1. Mulderator

    Mulderator Thread Starter

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    Ok--friend gave me an older computer to look at. I tried powering it up and nothing--not even the fan on the PS. So I threw in a different PS and the PS turns on but that's it--nothing on the MOBO. Popped out the CMOS battery and popped it back in. Still nothing. I think the PS when it went bad probably fried the MOBO, but how do you know for sure?

    Its an older MB so there isn't any extra 4 pin connector or anything like that.
     
  2. DaveBurnett

    DaveBurnett Account Closed

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    If you put a known to be good processor and some good memory in it and it still refuses to work........
     
  3. Mulderator

    Mulderator Thread Starter

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    Well, if the processor is bad, its not worth fixing anyway because its an old computer. If the memory is bad, wouldn't it still boot and then you'd get a memory error?
     
  4. crjdriver

    crjdriver Moderator

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    No, it will not post however you "Should" get a series of beeps that correspond to a memory problem.

    Mulder are you trying for a post outside of the case? I would do this first to eliminate a mounting problem. If it posts, great. If not the next thing I would do would be to pull the memory and then power up. If you do not get a warning beep, either the cpu or the board is dead [maybe both]
     
  5. Rich-M

    Rich-M

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    No not necessarily. If the memory was bad or dislodged it could fail to boot and you could have no signs of life at all. Same is true of video card and you need to check or try another video card before giving up on motherboard.
     
  6. Mulderator

    Mulderator Thread Starter

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    Well, I did try posting it outside the case and same thing--nothing--I don't have another video card. I did try another stick of memory and nothing.

    My guess is since the PS is bad that it fried the MOBO.
     
  7. Rich-M

    Rich-M

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    It could well have done so but the video card is equally likely. Is this an agp card or onboard because I was guessing it is onboard and the psu could easily have affected that. Adding an Agp or pci card would test it for sure.
     
  8. JohnWill

    JohnWill Retired Moderator

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    I doubt I'd even have given it the P/S. :D
     
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