I have successfully delided my CECHH and the temps before and after are as shown in the pictures. I also have replaced the thermal pads in all 5 spots. Note that I have used MX-4 thermal paste between the IHS and the heatsink and thermal grizzly thermal paste between the CPU/RSX and their respective IHSs. Also note that the room temp here is around 20c controlled by the AC. It is a welcome improvement but is there something else that I can do to improve it even further? all I can think of is that it might have helped if bent the pressure clamps a little especially on the RSX side.
This is few days later. It has been idling for few hours each day to transfer games via ftp to it. It seems like the more I ran it the better it gets. Been looking for a post discussing thermal compound break-in period on the PS3 for a while. well I guess that can also happen and this is my proof. Note that it is still in an airconditioned room with the AC set at 20c. I could not found any threads/posts discussing CECHH temps in depth but since it uses the same 90nm as the earlier versions I suppose what I got from deliding mine is comparable to a delided early model phat PS3.
