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Computer died suddenly and strangely

Discussion in 'Hardware' started by riotgrrl, Apr 19, 2007.

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  1. riotgrrl

    riotgrrl Thread Starter

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    Last Monday I turned my PC on and after 45 minutes it slowly crashed to a complete freeze up, so I manually retsarted, and it happened again 45 minutes later. Since then, whenever I turn it on, it powers up but does absolutely nothing. There's no beep, nothing appears on screen but it stays powered up. So I thought it's probably the graphics card, so I bought a new one only to find it's not that. The PSU is fairly new, so I don't think it's that. I don't *thinik* it's a hard drive problem because I tested another hard drive in the machine and the same thing happened.

    I'm guessing something's burnt out, and I'm worried it's probably the motherboard or something.

    What do you think?
     
  2. crjdriver

    crjdriver Moderator

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    It could be a motherboard problem however it can also be a power supply that is causing your problem. If you installed a quality ps like an antec, sparkle, etc then I would suspect the board. If you installed one of the cheaper ps, then it may have died also.

    Quickest way to tell is to swap in a known working ps and see if it will post.
     
  3. ~Candy~

    ~Candy~ Retired Administrator

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    Hi and welcome. I'd guess the motherboard, as I'm assuming from your post, something probably overheated.

    What you should do, is to disconnect everything not needed, cdroms, drives, take out any add in cards, try starting with one stick of ram, cpu, motherboard, power supply and video card.....
     
  4. riotgrrl

    riotgrrl Thread Starter

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    Okay,. I tried that. Same problem. I guess I'll just have to buy a new motherboard.

    I was hoping it'd be something cheaper like RAM or PSU.
     
  5. crjdriver

    crjdriver Moderator

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    Have you tried a known working ps?
     
  6. ~Candy~

    ~Candy~ Retired Administrator

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    crjdriver suggested trying another power supply.

    If it comes down to you buying another motherboard, depending on how old the system is, this may not be a good idea. Be sure the cpu, ram, etc. that you have will work on the new board.
     
  7. riotgrrl

    riotgrrl Thread Starter

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    Wow, I tried another PSU and it worked! Weirdly enough, the resolution has gone all ****ed up....not sure why, but hopefully that's not biggie.

    Thanks very much, guys!
     
  8. riotgrrl

    riotgrrl Thread Starter

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    I was premature with my celebration, it did it again! I put in a different PSU (which is by no means great but I know it works) and everything was fine, I managed to log in, then my mouse and keyboard stopped working as it carried on logging in and then everything froze complete (just like last time) and then gave me the same problem of a blank screen.

    So now I'm just confused, is it a PSU problem or something else?
     
  9. TreyDawgMT

    TreyDawgMT

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    Is the replacement PSU large enough to handle everything??
     
  10. riotgrrl

    riotgrrl Thread Starter

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    Yeah, I think so. Besides, it's doing the same thing as it did with the old PSU whichw as fine for months.
     
  11. ~Candy~

    ~Candy~ Retired Administrator

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    Will it stay on long enough to allow you access to the bios setup to see if the cpu is overheating?
     
  12. riotgrrl

    riotgrrl Thread Starter

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    Probably not, I was going to try again in a few hours. I'll check for the CPU thing first.
     
  13. ~Candy~

    ~Candy~ Retired Administrator

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    If you make it to the bios, look for PCHealth or something similar....there you should see the cpu temperature.
     
  14. riotgrrl

    riotgrrl Thread Starter

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    No, it won't go anywhere now. Just blank screen again.

    I can't really work out why it worked for afew minutes with the other PSU and then resorted back to the state it was with the original PSU. It makes it hard to believe it's a PSU fault, but then changing the PSU did make it work.....briefly.
     
  15. ~Candy~

    ~Candy~ Retired Administrator

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    Unplug everything from the wall, turn off power supply from the back switch and leave it alone for an hour or so....then try again.
     
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