I'm a computer guy, so please don't get too mad for this question (I read over the "Is this too hot?" sticky already...) I've never had this problem, or just about any problem, with my computers before, however, and I really don't know what to do. First off, here is my setup: Asus A7N8X Deluxe AthlonXP 3200+ (at stock speed) Volcano 7 (I don't believe it's a 7+...) nVidia GF FX 5950 Ultra Corsair 1GB (2x512) PSU is whatever came in this iCute case. It claims 400W max power. Fans are: 1 side blowing out; 1 top blowing out; 2 back blowing out; 4 front blowing out; PSU has a fan blowing out. Nothing is taking in cuz it sits under a desk and it just doesn't seem like any decent air will be had around there... I think that's the main stuff necessary here. Check my profile for more info. Basically what's happening is whenever I load up Counter-Strike: Source, I can play for about 5-10 minutes before the computer just locks up entirely (any sound that was playing will just loop in the speakers until I hard reboot). I check temps in the BIOS after such an incident and it claims to be at around 49-50°C. Now Asus PC Probe, assuming it's somewhat accurate, rates the temps at 41-43°C while idle, then it jumps to 45 or more when playing original Counter-Strike or something. Temperature in the case sits around 26-28°C. Now before I continue, until two days ago I was running an XP 2500+ on this same setup, and temperatures idled around 37-39, then jump to 40-42 under some load. Counter-Strike: Source crashed just the same, however. Last week this symptom started occurring any time I would load even regular Counter-Strike, and also while logging in to Final Fantasy XI. I couldn't even play the games for a few days. I took the computer out to my dad's shop and used the air hose on it to blow out all the dust (there was a ton of it), and that seemed to fix the lockups in CS and FFXI, though Source still suffered. Now that I'm on the 3200+ I was kinda hoping this would just go away, I thought maybe my CPU was getting burnt out. This CPU idles hotter than the last, but the exact same problem is occuring. I actually just had it happen while playing FFXI for about 3 minutes randomly... Could this be the temperatures of the CPU in any way? Could that Volcano 7 just not be cutting it? If so, what are some excellent (price doesn't matter) fan/heatsinks for this CPU? It could be that this fan just isn't cutting it under a real load (and CS is pretty old, it doesn't tax things too much...) Like I said, the XP 2500+ ran cooler but suffered the same symptoms, but could that just be different acceptable temperatures for these CPUs? Could it be the video card at all? What happens when video cards are getting too hot? Right now at idle the GPU core is sitting at 43°C and the ambient is at 38°C. I wasn't sure if too much crap was hooked up to the PSU, so I unhooked a DVD drive that I never use as well as three outgoing fans, but no to avail. Sorry if these are questions you guys get all the time, I just really don't know where to take it from here. I've honestly never had trouble with any computers I've had, so I'm kind of at a loss as to a cause I'm thinking it's heat, but I really don't know for sure. Any help would be greatly appreciated.