I just built and tested a gaming pc that works perfectly. I stress tested it using aida64 and everything was working fine. I then delivered it to my friends house, which is a 10-20 minute drive away, with the pc in the back seat. It arrived and I turned it on, but there was no signal and the pc kept turning off and on. How could of this happened and how can I fix this? As I need it delivered by christmas. Thanks