another posibility...guba na imo processor.....labina kung amd imo processor....mao ni mahitabo...another posibility...naa defect ang mga add-on pci or agp card slot....
try this....
put everthing back then
take all your unwanted add-on's sa computer...
if mo off gihapon...try to re attach your mobo....tatangon den etaod balik......
try to used another processor....