Computer randomly locks up and other issues

CPU: AMD Phenom II X4 955 3.2GHz
Power Supply: Corsair 800W Psu (just purchased to replace my 500W)
GPU: EVGA GTX 650 Ti 2GB (just purchased this week)
Mobo: Gigabyte GA-MA785GM-US2H (had it for about 3 years running fine)
RAM: Patriot G Series DDR2-800 4GB (had for about 3 years running fine)
Hard Drive: 1TB WD Green HDD (purchased this week)
OS : Windows 7 Ultimate 64 bit (Fresh install)

Basically, when using my computer it will randomly lock up and start making a very loud buzzing/screech noise in my speakers until I hard reset with the power button. Sometimes this can take 5 minutes other times it'll take 4 hours to happen.

Doesn't matter if I'm in a game or at my desktop, i'm at a loss of what it could be, all my new components ran fine for about a week before it started happening, I even returned the new videocard I bought to Best Buy and got a replacement because I thought it was defective but to no avail I still get this issue.
6 answers Last reply
More about computer randomly locks issues
  1. Reboot in safe mode and roll-back drivers to the beta 320.00 There's something wrong with the 320.18 drivers
  2. Press f8 at when booting to enter safe mode options
  3. I'm using the NVIDIA 314.22 drivers I was using 320.18 before, downgrading drivers didn't fix the pc freezing issue.
  4. mvpdrone said:
    I'm using the NVIDIA 314.22 drivers I was using 320.18 before, downgrading drivers didn't fix the pc freezing issue.


    This is why i'm going to the AMD darkside. Nvidia with all their recent driver bullshit has pissed me off enough.
    Try a clean driver installation. Reboot in safe mode, un-install drivers. Reboot in safe mode again. Install the 320.00 beta drivers. those were not too faulty -_-
  5. P.S Have you stress tested your RAM yet? Download prime95 and let it complete 10 passes
  6. My PC ran completely stable during the prime95 test, and then 20 minutes later froze the moment I launched Starcraft 2.
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