I picked up a MDD that was reportedly having stability issues. It is a 1.0 GHz DP. It would kernel panic a Mac OS X Leopard immediately after booting. I then found out that the original high speed Delta CPU fan was replaced with one slow xsilence fan. Of course, the CPU would got very hot very soon, so I bought a replacement original Delta. I also blew all the dust out of the case with a compressed air, however it wasn't really dusty. Next, I replaced the thermal grease on the CPU with an AS5. It runs solid as rock now, but still it is running too hot.
The problem is that the CPU idles at