I bought a playstation 4 on ebay working fine. I opened it up to redo the thermalpaste and clean up the inside a little bit and now it won't turn on. I think I plugged everything in. I plugged the power supply into the mobo, all data ribbons are in place, the antenna is plugged in, the push plug on the bottom of the board is plugged in. Is there anything I have missed or should try out?