Gateway computer freezes within an hour after start up.

Hypeo

Reputable
Jan 1, 2015
1
0
4,510
i need help with this. I put a new Geforce 760 graphics card and power supply in to a prebuilt (i know not a good idea) anyways the thing freezes after an hour or so, i thought it was the drivers (nope) then bios (there isnt an update), and then a windows refresh. (nope again) anyways, i can play any game for infinite time, but the moment i exit it freezes. so im thinking its a background thing, maybe a virus? ideas are welcome.