and it won't even turn on. Has anyone come across this issue before. I've checked the external power cable on another computer and that works. When I plugged it in to the other computer to check, I noticed that the power supply fan would come on and then stop. This doesn't happen with my power supply. I'm thinking it might be the power supply. Its a Gigabyte mother board...with a P4 530 3.0GHz. Any insight would be appreciated.