867 G4 Quicksilver CPU fan replacement

[Syntho]

The CPU fan sounds like Donald Duck screaming with a neverending breath. I unplugged its small power cable and it's quiet as a mouse. Is there a particular ultra silent replacement I should look for?

 

[didius]

I don't own a Quicksilver, but xlr8yourmac seems to have a great number of articles on the Quicksilver fan. Like this one:

http://www.xlr8yourmac.com/systems/quicksilver_CPU_fan_mod/quicksilver_cpu_fan_noise.html