I have had a computer for about 2 years now. I was playing a game when the computer just shut down. When I turned it back on, I got a cpu fan error. I turned the computer off again and took side off. The fan did have build up, so I used compressed air to clean it and the vent off. I put it back together and started the computer. Again a cpu fan error. I took the pannel off again to look at the fan operation. It looks like it is working fine and did not notice any broken wires and all was plugged in properly. I put it together again and started the computer. I went to enter bios and after being given a cpu fan error was in bios but before I could check fan settings, the computer shut down. I have since been unable to get back into bios, and don't know why. I have a hercules aquacool from avc like this.