When I start up my computer it will start off fine, however when windows starts to load it will randomly restart, going through the bios again and starting to load windows before going through the process again. I've tried using a different hard drive with windows to boot from and also removed the cases buttons from the motherboard, yet the same thing happens. Unfortunately I haven't got a spare motherboard lying around to test if it is the problem. I plan on taking it apart and putting it back together tomorrow, however if anyone knows what is wrong and how to fix it I would greatly appreciate it.