I have an AMD XP 3200+ (barton 400mhz FSB), on a Gigabyte 7N-400 pro 2 mobo, with 1 gig of memory and 200 gigs of hd space. I also have a unique setup so that when I boot my computer I use two powersupplies to run my computer. Both of them are antec (350w and a 430w). I am running windows xp with sp2 and the updates, however I have one major problem. The computer will make a very loud beeping noise when I start running a lot of processor consuming programs and eventually it will even restart. Even if I am just runnning one program, for instance half life 2 it will start making a very loud beeping noise and then it will restart. I thought it was because I might be overheating, so I changed my old cpu fan, which was some thermaltake fan good for up to amd xp 3200 or higher and I replaced it with the OEM cpu fan for the AMD XP 3200. Still the same problem. I am starting to think that it is because of my video card which is a Leadtek WinFast A250 Ultra (ti 4600) is overheating, because it normally happens when I am playing computer games. One last comment: I am really skeptical that it is the processor overheating. I am not overclocking my computer. I also have 7 case fans running, so I would assume the case is rather cool. Any help would be much appreciated. Thanks a ton!