Computer randomly restarts with no warning

Hi,

Not sure which category this question belongs to but I recently built a computer and occasionally, my computer will restart with no warning and when it boots back up, there is nothing saying there was an error. I had windows 7 and recently upgraded to windows 8 and it restarts with both operating systems.

I have gone to Advanced System Settings and turned off automatic restart but that did not solve the problem.

Any help is greatly appreciated
4 answers Last reply
More about computer randomly restarts warning
  1. Run Memtest. I see this usually happens with computers with bad ram.
  2. moulderhere said:
    Run Memtest. I see this usually happens with computers with bad ram.


    I ran memtest and it said everything passed.
  3. sounds like a power problem, do you have a big enough psu to run your components. what gpu do u have
  4. I agree with friendlytoad. I too faced such problems when I installed a dedicated graphics card and also when my PSU worn out. Before the restarting problem the desktop used to freeze completely and then I had to restart it.
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