I'd been getting reduced performance in games lately, the odd freeze and restart etc. I put it down to the different drivers i'd been trying out and eventually reformatted yesterday to see if that would sort it out. Anyway, in the middle of a MW2 session today the PC shut down, no freeze or BSOD, it was as though it had been turned off at the wall. I tried to switch it back on and the BIOS had reset itself, I reset it back and tried to restart it again. The DVD Drive clicked as if power where going to it, the fans spun for a couple of seconds and then it stopped again. I tried a couple of more times but it then wouldn't even spin the fans. The motherboard lights are on. The PSU shows a red light on the back of it, i'm wondering if it's blown? I'd been getting a weird whistling kind of noise for the last few days but being lazy ignored it.