i ended up with a faulty ps3 bad drive, so i brought a replacement drive with all included (so i could cover any fault in the current drive). anyway took off the logic board and attached to new drive and stuck back in the ps3 and tried loading discs.
discs get sucked in and laser fires up for all types of discs and spindle spins up but nothing ever shows up on ps3 menu. so now don't know if it's the correct logic board but has been damaged or if some gits stuck any old logic board in there and it's either faulty or wrong one.
i did read if it's the correct married board and just damaged you can desolder the chip off and add it to a working board.
99% of the time the clock on the menu doesn't spin, but i was able to update to the latest f.w. 2.55 i think, but when trying to play a demo i get the black sreen treatment.
if anyone can point me in the right direction on where to go next? thanks.