Originally Posted by smTT
Update: I have tried.
Nor tristate to 3.3v ( 3.3v being solder point on the motherboard ) still the Ps3 will not stay on.
Noooooooo tristate is soldered to Ground to halt boot. Remove E3 flasher and solder a wire from the tristate point to a ground point. Rebuild and hope it stays on, if it doesn't you may have caused hardware damage.