The motherboard lights don't turn on and the whole system keeps looping. The fans spin for a second and turns off. This happened randomly out of nowhere and the pc was working for 2 years straight with no issues. I took the PC to a repair shop and it turned on there..they troubleshooted it for 2 days and said everything was fine and they even used it and it was perfectly alright. I brought it home and same issue again..the fans spins and turns off