If you can get into the BIOS, then it's POSTing. And a power supply failing can take nothing with it, or be the source of the most issues you've ever seen. I've seen a power supply blow, and take out a DVD drive, but not the hard drive - and they were plugged in to the same power cable. Failing PSUs can do the weirdest crap.
8/29/14 at 3:23pm