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Solved: Computer turns off randomly

Discussion in 'Hardware' started by deweys21, Apr 1, 2009.

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  1. deweys21

    deweys21 Thread Starter

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    My computer restarts randomly depending on how long in between the times it already restarted. if i haven't used it in a few days it works for a few hours and if it has turned of anywhere from 1min to 5 hours it only stays on for a few secs to a couple of minuets. I have tried replacing almost everything. Including Power supply, ram, hard drive, unplugging everything unnecessary(Video Card, Mouse and keyboard, Network stuff, just the power cord and monitor left in).

    I'm 98% sure the processor is not over heating sense i ran programs to check the temp and it shuts down even if the the core and everything is below 35° and the processor is cool to the touch. What has me stumped is I can replace the hard drive with a spare one with Windows XP freshly on it and it will still restart. I have tried to disable all the network drivers installed on my computer.



    Any suggestions or thoughts would be great! (Even if you dont think it could be the problem).

    The computer has a 700w Power supply. (OCZ Tech)
    AMD 6000+ Processor (not over clocked)
    2Gigs ram. (A-DATA)
    512 8600GTO Video Card.(PNY)
    M2N68-LA Mother board... (It's out of a Compact.)((Think its ASUS)
    Running Windows Vista 32-Bit.(All Updates)

    Tried running it like:
    300w Power Supply
    AMD 6000+ Processor
    512 Ram
    Onboard Video
    M2N68-LA Mother Board
    Windows Vista and XP both 32-Bit
     
  2. DreadStorm

    DreadStorm

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    Corrupted driver perhaps, or even "zapping" your user's profile? Have you attempted to log in as a different user yet?
     
  3. deweys21

    deweys21 Thread Starter

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    No, but i just log on as admin and it still powered off... And I have realized some times the computer runs slower then normal.(not super slow just slower). Thanks for the try!
     
  4. DreadStorm

    DreadStorm

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    Running in safe mode tells me it's one of two things - driver for something, or malware. You've already done most of the troubleshooting yourself. That's all that remains, really.
     
  5. deweys21

    deweys21 Thread Starter

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    What explains it shutting off running a different hard drive with a different OS on it?
     
  6. DreadStorm

    DreadStorm

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    Using Linux or another version of Windows? Because if it's the same OS (for example, XP), and same drivers you installed, my suspicion remains. But if you're using Linux on the other drive, or (for example) Vista, I'd suspect BIOS at that point, or a support chip on the board might be going out also. Have you flashed the BOIS with the most recent version?
     
  7. deweys21

    deweys21 Thread Starter

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    Alright my bad... It dont stay on in safe mode. But yeah i used xp and vista. Im not sure how to flash the BIOS. But im going to look it up and do that right now. And Ill edit the first post to fix it.
     
  8. Courtneyc

    Courtneyc

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    Typically, the computer will randomly shut down for one of 3 reasons: (1) bad motherboard sensors; (2) overheating; (3) bad power supply. 1 is unlikely. You stated that 2 is unlikely, although I'm at a loss to know how you discovered that the CPU was cool to the touch.

    That leaves the power supply.

    Courtney
     
  9. deweys21

    deweys21 Thread Starter

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    To figure the CPU was not hot I ripped the heat sink off after the computer turned off several times in a row...(was a little mad at it.) Ill have to barrow someones 450+ power supply because when I put my 300w supply in it still does it, but the processor i have takes 125w just for its self to run. Not sure if 300w is enough to keep it stable.
    Thanks for all the suggestions so for!
     
  10. DreadStorm

    DreadStorm

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    I've found recently that some motherboards require 350 watts of power just to run the mobo. It's becoming more and more common to bank on at least a 450-watt or better, and that's for a basic, minimal system.
     
  11. deweys21

    deweys21 Thread Starter

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    Another thing i realized is the mobo right next to the processor get kinda hot... not sure what causes it.
     
  12. casper0191

    casper0191

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    have you tried to Scan the system might be infected with some computer Virus.
     
  13. deweys21

    deweys21 Thread Starter

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    Not a Virus problem... hence I tried running Windows XP from another Hard Drive. Thinks anyways!
     
  14. casper0191

    casper0191

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    Hm.. Well did you consider that your computer had a hard ware problem?
     
  15. deweys21

    deweys21 Thread Starter

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    I got a new mobo and when i pulled the old one out of the case on the back side only it was burned bad.... all around the +4 plug. you could not tell from the top side. thanks for all the help!
     
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