[Litchy]

Hey, I just reformatted my computer to fix a couple of problems before, but i still have this problem, when i play games such as COD4, WoW or play music after a short amount of time my computer will lock up and the only way to get out of it is to turn the power off, i have no idea whats wrong with it.

Specifications:

CPU: AMD Athlon 64 X2 Dual Core Processor 3800+
Video card: Nvidea GeForce 7800GT
Motherboard: LP NF4 Series
Ram: 1024 MB (x2 512 MB) OCZ, SDRAM DDR
OS: Microsoft Windows XP Professional, Version 2002, Service Pack 3
Power Supply: 500 WT
HDD: Seagate, Barracuda 7200.7 SATA NCQ, ST3200827AS, 200 GB, IDE SATA-II

Any ideas would be much appreciated.