Oh please help! Quick hello to all, I'm new to the forums and in dire need of some assistance. I've had my pc for some time now and have been upgrading in bits and peices. I've recently formatted my hd because, well, it was that kinda time. (You know, my computer was just due a good ole formatting) Anyway, I play games, talk to mates on msn, download, upload all that jazz and have been for some time but have never come across a problem like this. Every now and then (only recently in the last week) my computer freezes, and reboots! No blue screen of death, no noise, nothing, just... reboot. I go past my login screen and I always have a 'serious recovery error' thing from windows whereby it leaves something in the minidump folder in the manifest or whatever it is. Maybe someone may need that to figure out what's going on. I've been playing games and it's rebooted. I've left my computer on all night whilst downloading only to find out that it had rebooted half way through the night. Sometimes I can leave my computer on all night then come early afternoon... reboot. It's completly random, I haven't found any program contributing to its cause but then again I may be looking in the wrong places. I thought it may be something to do with Bitcomet but I haven't got a clue to be honest! I've heard somewhere that it may be related to the PSU but I've never had any problem like this ever before. The last time I upgraded my hardware was to buy better memory about 6-7 months ago. I've ran memory tests and nothing shows, nothing comes up on spyware, viruses etc. My computer's well aired and fans are going like mad, not overheating either, neither is it dusty.Please help me someone, my compter's listed as below: Asus A8N SLI-Deluxe Athlon 64 FX-55 Cosair TWIN2048-3200C2PT 2x Geforce 7800GT (running in SLI) 300GB Maxtor HD Creative Audigy 2 ZS 550w PSU Thanks for your time.