I use a HIS Radeon X800XL and a P5LD2 Asus mobo. Alright, so I download this fan/temp monitor software called speedfan 4.28 and run it. I get these stats Sys Fan: 0 Rpm CPU0 Fan: 2550 Rpm Aux0 Fan: 0 Rpm CPU1 Fan: 0 Rpm Aux1 Fan: 0Rpm So I assume the sys is 0 because my case fans are antec tricool fans and use manual 3-speed switches and ain't really connected to the BIOS; that the CPU0 is my CPU fan and that everything is fine with it; Aux0 would be the mobo fan but I don't have one on my P5LD2 and that the remaining 2 would have been extra fans which I don't have. I set my CPU0 to 1900 Rpm to balance the noise/temperature and that's pretty much all I do. Then when I check my GPU I discover that it isn't spinning anymore. I tried uninstalling this monitor software and even uninstalling the videocard and re-installing it with new drivers but still, it won't spin. I also tried to run counter strike source for a 30 minutes to get it hot and make sure that it isn't just idling, but still, it won't spin. Then I try GTA San Andreas on the highest settings with high res and after 5 minutes my graphics get bugged and everything goes black like if the computer had been shut down, 5 seconds later it comes back and I can see the same bugged graphics again until it goes black again. So what do you think, might this software have screwed up some drivers so I have to re-install windows or is the GPU just not hot enough for the fan to start or is the fan broken for some reason?