PC Powers Off On Boot

Discussion in 'General Hardware' started by ProcalX, Feb 16, 2007.

  1. ProcalX

    ProcalX all grown up

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    Hi all, been awhile..

    This afternoon i'm going to pick up a Shuttle PC that was used for graphic design - P4 3Ghz // 2GB Ram // 256MB Grphx Card // 80GB HDD, anyway basically it turns on but quickly powers straight back off.

    Obviously this is hardware related, and when i get hold of it i can test it against another P4 Shuttle I have lying around at home. But just wanted some opinions.. I presume the most likely culprit is either: CPU or PSU.
     
  2. Willz

    Willz MiCrO$oFt $uK$ :D

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    Very strange problem, yea i would suspect that its the PSU, is everything standard in this Shuttle PC do you know? or has it been Upgraded?
     
  3. ProcalX

    ProcalX all grown up

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    Hardly a strange problem, quite common actually, no it has not been upgraded, even if it had, it would make no difference to the problem at hand.
     
  4. Willz

    Willz MiCrO$oFt $uK$ :D

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    No, the reason i was asking is because if it had been upgraded with better Hardware such as better GPU, it might of caused more power draw and been too much for the PSU.

    I though Shuttle PSU's were supposed to be really good, thats why i said strange.

    How old is this Shuttle PC your getting?
     
  5. ProcalX

    ProcalX all grown up

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    Right recieved it and been testing today it's a Shuttle SS59GV2 (an Intel 775 Socket with compatibility for Dual Core Processors) - AGP8x.

    It's running:
    Radeon X1600 Pro 128MB
    2 x 1GB Memory (although one does not work so its only running @ 1x1GB)
    80GB Sata
    DVDROM
    Card Reader
    3.0Ghz P4 775 Socket

    A shuttle shouldnt have any problems with this at all.

    Anyway using another machine i've deduced that:
    - One memory piece is faulty (this has now been removed)
    - The graphics card is fine
    - The hard drive is fine
    - The DVDROM drive is fine
    - The PSU is fine

    The only two components I cannot test are the CPU & Motherboard, as my other SFF pc is a 478 Socket and so I cannot test the 775 socket in it obviously.

    I tested the Shuttles PSU on my other Small Form Factor machine (no problems), tested the memory in my other machine (no problems - except one was faulty - now removed), the graphics card was tested and ran fine, the hard drive and DVD Rom were fine.

    I even replaced the CMOS battery with a new CR2032 Lithium battery as i've found this to cause a similiar problem before if faulty. - no luck.

    The PC powers on perfectly without any signal errors / beeps for aproximately 6 seconds and then powers straight off.

    What do you think I should do? - Do I buy a new Shuttle barebones and stick the working components in it or do i just chuck it and flog the spare parts (not really worth doing).
     
  6. Willz

    Willz MiCrO$oFt $uK$ :D

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    Come to think about it, i would now think that its a Motherboard problem, my last motherboard was faulty and whilst my PC booted and worked, it randomly shut down and in games too even shorter time to shut down, and i replaced the whole ocmputer except for the mobo before finding out it was the Mobo.

    Buy a new shuttle barebones could be the best option, but maybe just a new motherboard? i guess its using a micro ATX right?
     
  7. Karanislove

    Karanislove It's D Grav80 Of Luv

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    Have you tried Barebones method???

    Take out the Mobo from the Case...
    Leave it with CPU
    1xRAM
    1xHDD
    Video Card (if onboard isnt available)
    Short the pins with a Flat head screw driver and see if it powers up..:unsure:
     
  8. Big B

    Big B HWF Godfather

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    That does sound like a heat issue to me, especially with the lack of beeps. I'd definitely recheck cooling for proper seating and that the fan is running.
     

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