I have noticed that when I play games like Oblivion, Crysis (demo), Half life 2 lost coast that my computer locks up and then shuts down during the game. It has happened many times and it only seems to happen during games, I have not tried anything else to see if it locks up in programs that put a lot of stress on the CPU/GPU, but what could this problem be? Specs are in sig.
Also, I don't have the 80C temps on my 4850 because I got this version of it: Newegg.com - SAPPHIRE 100245L Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Desktop Graphics / Video Cards
Also, I don't have the 80C temps on my 4850 because I got this version of it: Newegg.com - SAPPHIRE 100245L Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Desktop Graphics / Video Cards