Installing CPU Cooling Fan into Apple G3 Case

Air Guide

The Apple G3 power supply box is exactly in the place where the CPU socket is, and there is a very small gap between the two to fit the heatsink. Usually the cooling fan attaches to the top of the heatsink however; there was not enough space, besides it would only blow the hot air on the PSU box. To solve this issue I decided to install the fan to the side of the heatsink and cut a slot out of the back I/O plate for the hot air to escape.

Copper wire worked well for attaching the fan to the heatsink. I also made an air guide so that the hot air would not go over the electrolytic capacitors.


CPU Heatsink
Attaching Fan

Motherboard and CPU
Cooling Fan

This Article Continues...

Apple G3 Mod
Aligning PCI Slots in Apple G3
Installing ATX PSU in Apple G3 Case
Installing CPU Cooling Fan into Apple G3 Case
Making a Motherboard I/O Plate
Modifying Apple G3 Case
Modifying Apple G3 CD-Rom Cage