Fairlight-CMI

Hi guys,

I wanted to replace the fans in my CMI3 with much quieter ones.

My mainframe has the WFM-32 RAM card and I will soon replace the internal 3,5" HD with a Compact Flash drive; there is neither a floppy drive nor a streamer installed.

Since the machine is running much cooler than a standard CMI, I was wondering, if I still need all of the fans?

People talk about replacing the fans with Pabst ones. 
But what type / model no. exactly?

Thanks in advance.

Tom