Hello everyone.
I'm not a computer expert, but I know some basics. I bought a new computer. These are the components I got.
Motherboard: GA-MA770-US3
Processor: AMD Phenon 9500 Quad Core ~2.2GHz
Graphic: ATI Radeon HD 3850, 512MB
RAM: Kingmax DDR2, 2GB, 800MHz
HDD: SEAGATE Barracuda 640 GB, 7.200rpm, 32 MB
Power: ATX Xilence 600W
Computer runs fine, everything works properly, unless I start playing some game. After a while (its random) but usually around 10-20minutes in game, whole PC crashes. PC still runs and everything is under power, but I don't have any display, its a simple black screen (monitor is still working).
When I try to reset it, this is important, I can't. Reset button doesn't work. I need to hold shutdown button for few seconds until it completely shuts down. After that I can turn it on again, and it works normally.
I have no idea whats causing this. I should make note, it only happens during games, and only on certain games. For example when I play Voyage Century (its an mmorpg) or Unreal Tournament 2004 it never crashes, not even once. Soon as I run something like Half Life with better graphic, PC just crashes after some time.
I'm suspecting it might be a graphic card problem, but i don't see a connection between reset button and graphic card. I have latest drivers for everything, I tried rollbacking graphic drivers, but nothing helps so far.
I should also make a note, all fans are working properly and all temperatures are fine, except southbridge on motherboard, it burns at 80C. I'm not sure is that normal for this motherboard or is it a real problem.
Any suggestions, thoughts, experiences is highly appreciated. I'm going on vocation, I wont be online next week, I expect to see some thoughts and suggestions when I come back.
Thank you in advance.
