First, let me get my system specs out of the way!
OS Version: Microsoft Windows 7 Ultimate
System RAM: 8190 MB
CPU Name: AMD Phenom(tm) II X4 975 Processor
Video Card Description: NVIDIA GeForce GTX 280
VRAM: 1024 MB
Power Supply: 750W
Basically, this is a weird issue. Pops up once a day and once it happens, I'm fine for the rest of the day. My computer freezes within minutes of starting up pretty much any game (I've tried TERA, Tribes Ascend, DOTA2, GW2, BF3, MW3, and ME3). Every time, everything, including sound, simply comes to an abrupt halt and the screen graphics .... turn scratchy and purple for the lack of a better tern.
I shut the computer off. Once it's back on, everything seems to be fine; I'm good to go for the rest of the day and it almost never happens again. I really don't get it. Anyone run into this? At first, we thought it was my old motherboard because it didn't have heatsinks in certain areas and my processor's wattage was the absolute max it could handle. After installing a new motherboard AND new RAM, it still kept happening. I don't think it's my video card, because before I underwent a processor upgrade into what I have now, it's never given me any problems like this. My processor? I don't know- if it was a serious issue, it'd keep freezing up every time I want to play, wouldn't it? So far, this only happens once a day, almost always the first time I try to start up a game.