Hey, I'm new to these forums, but they seem like a very helpful place Well, I've been having random restarts, for no reason that I can see. They never occur at any particular time, or while running any particular program, it just restarts whenever. The restarts began after I installed my new video card, and RAM. I've run memtest on each RAM module, but it always turns up clean. System Specs: AMD Athlon 2900+ Chaintech 7NJL6 1 512MB pc3200, 1 256MB pc2700, and 1 128MB pc2100 XFX GeForce 6800 AGP 128MB 160GB ata130 Hitachi HD 500W Powmax PSU Thanks for your time, any help will be appreciated.