PlayStation 3 Yellow Light of Death (YLOD) Fix Kit
I'm having the same issue. It turns back on but theven fan gradually speeds up to max within 2-3 minutes of powering on. I left it running to see if it would reset or explode. Neither happened. But I did receive a message saying that the system was running too hot and needed to be turned off and cooled down. By the way, the fan at full speed, sounds like a modle jet during take off.
I have no idea what is causing this anday no idea what to do about it.