yes , check for bloated capacitors on mobo and PSU < thinking na ur using onboard VC >
HDD has nothing to do with it.
check ur Heatsink pud basing naluag < kay naputol ang till on LGA775 | 1156 |1155 | 1150 ;
or ni crack ang HSF bracket on AMD >
check also if init na kaayo ang MCH sa mobo
and post your whole specs please.