Crashing after geforce 9500 GT Install

I just upgraded my computer with a new video card and a bigger power supply. Now I am experiencing random crashing when I am using the computer. I can leave the computer alone and it will not crash (as of yet), but I can simply be browsing and I will get a hard crash. I disabled the on board video card, swapped out the new power supply and tested it with the old one, updated all the drivers over again, updated windows, and nothing is working.

My specs from system info and device manager...

Windows Vista Home Premium service pack 2 64bit
Pentium Dual-Core E5200 @ 2.50GHz 2.50 GHz
6.00 GB RAM
Nvidia 9500 GT 1Gb ddr2 with fan
600 watt power supply

If you need any more info just ask. I appreciate the help.
3 answers Last reply Best Answer
More about crashing geforce 9500 install
  1. somebody please help?
  2. Have you tried updating the latest BIOS on your PC?
  3. Best answer
    Only after you have the latest BIOS, is the 600 watt power supply approved to work on the Gateway PC?
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