I have a HP Pavillion p6510y , I have only changed out the Power Supply to a 600w, added a 1GB GPU and a 1TB HDD. My computer has been randomly shutting off and I have no idea why. Once it shuts off , it loads up the bios and only says "F10 - Support" , and after restarting it continues normally, then repeats after about 10-15 mins. I don't think it is overheating. I've checked the temps and they don't go over 40C and the PC doesnt even feel hot.
Next I noticed when you wiggle the PC the power seems to cut in and out, but it only happens every so often. It fell in the back of my car, I of course flipped $@!%, but it seemed ok for a while. Then it started doing that.
I decided to run diagnostics and the BIOS said everything was fine but my HDD had an Error Code : BIOHD-8
If someone could help me get this working it would be amazing. Thanks.