I just got a new Motherboard (Gigabyte 78LMT-USB3) A new CPU (AMD FX6300) New RAM (Crucial Ballistics 8gigs) My PSU is 750watts Have a GTX650 1Terrabyte HDD 2 Terrabyte HDD I'm pretty sure it may be using the new Motherboard but unsure what to check for.
Probably a power supply issue. I'd replace it and if the problem continues it may be a motherboard issue.