8 Replies Latest reply: Feb 13, 2011 11:07 AM by BDAqua
Forever Newbie Level 1 (0 points)
I have a Quicksilver G4 (DP 1GHz) which ran trouble free(except CD/DVD Drive) for many years. One fine day I got kernel trap and not co-operating since.

When I press the power on button it lights up momentarily but no chime.
It did work for few hours after few days

I really like to revive it and I have done the following
1. Reset the PMU switch on logic board.
2. Replaced 3.7 Volt battery
3. Reseated all the PCI cards (Video, SCSI card, Ultra SCSI etc)
4. Checked the voltages on Power supply.
5. Cleaned all the dust (lot of it) on the fans and inside the tower.

Now I am planning to re-seat the processor card. For this I need to remove heat sink. I read in a website (http://www.jcsenterprises.com/Japamacs_Page/Blog/9AE7FE0E-0CF2-4A7C-8003-489B282 582BC.html) that *thermal compound* is a must.

But then in this forum and Apple Service manual I don't see any thermal compound mentioned for Heatsink for Powermac G4.

Now my concern is whether this is recommended step. I don't want to create new problems on top the existing ones.

I call on the experts...:)

Powermac G4 (quicksilver), Mac OS X (10.4.11)