iMac Intel 27" EMC 2429 POWER SUPPLY REPLACEMENT

My Problem

NO START UP POWER / NO LED INSIDE/HARD DRIVE AND MEMORY OK

My Fix

Fine but :

You must have a screwdriver with a magnet stronger than those on the edge !

My Advice

I put a plastic tool between the magnets and the screwdriver to screw them without their glue on the edge!