I have an I Buy Power PC and it keeps restarting. It got worse were you can't even boot it anymore. I took it to someone that knows quite a bit about computers and they tried fresh install of windows. Then power supply, they tested ram in different computer and I tried taking one out at a time. Then they called and said they thought it was cpu. I said I would just pick it up. I don't want to pay $$$ for one if thats not the problem.. Also not sure what they did but when I put processor back in and put new thermal compound on. I turned it one and said it couldn't find operating system.. So I put windows reinstall disc in and it downloaded windows but as soon as it was going to boot or at the end of it, it just turns on and restarts just like before. It runs fine in BIOS and it ran fine in safe mode before. Cpu is running 37 degrees C at idle in BIOS. Any help would be so appreciated. I have a ton of time in messing with this thing.