this ps5 was working normal then suddenly started to behave like in the title. power supply was replaced and the ps5 started a few times and was deemed fixed. unplugged from power cord. a few weeks later wanted to start again but same issue returned. beeps on every press but not runing on. no voltage drop on 12 v rail when pressing power button. no shorts detected either. givin 12v/5a on 12 v rails draws 2v/5amps. fuses are ok. no signs of drop damage. any ideas?