Just a quick thing to test out if you 're getting random reboots and CTD's. I was getting them for a while and tried everything. Every fix possible, I tried everyhting, down to replacing the power supply. After a month of fighting through CTD's and crashes I finally found a fix that worked.... I took my gfx card out, cleaned all the dust off it and cleaned the whole motherboard with a vacume (make sure your grounded befor you do that). I also used a pencil eraser to clean the GFX card edge the goes into the mobo. When the cleaning was done 10 minutes later, all problems were fixed. I have not had a crash since then, not ONE!! Such a simple fix, give it a try people, it just might work!!