Chosen Solution

. have u seen a ps3 turn on then of half a minute later? if so. i tried hard reset. only beeped once then cut off. is my ps3 bricked? i no its not yellow ring of death. it turns on then off a half a minute later. cant even get to boot screen i had a e3 hooked to it. is was on standby. lights going back and forth. then fan speeded up really fast so i pulled harddrive out. i think i had e3 on clip backward

Sounds like the power supply. Either that or the motherboard is screwed. Replacing the PSU will help. Although these things happen for a reason, so something killed it. If you can get it back up and running I strongly recommend that you back up your ps3. I would like to state that reflowing has a chance of failing. I advise people to reball instead of reflowing.

Could it be bricked?