Is this a new build or was the system running and stopped?
If it's a new build pull the motherboard out of the case to ensure it's not shorting on the tray and do a bench test following the procedures here> Bench Test < Do not ship any steps.
If it's a new build pull the motherboard out of the case to ensure it's not shorting on the tray and do a bench test following the procedures here> Bench Test < Do not ship any steps.