A lot of times those fans come with an adapter to simply plug it into the disk drive power cable. If yours came with one of those, perhaps give that a try.

If it still doesn't work then you probably just got a faulty fan from wherever you bought it from. There isn't any reason it shouldn't work ...

Hi again, I just received my replacement fan for my Power Mac G4. (I have a Power Mac G4 Mirrored Drive Door. My stock fan is DELTA AFB1212SHE 120mm X 38mm 150 CFM FAN 6942, 3700 RPM, 53dBA.).

This stock fan quit working on me one day. I was told the fan had died. So, I have researched to find a ...

Hey bulldog,
CFM = cubic feet per minute, the airflow, the higher the better.
RPM = rounds per minute, the fan´s rotation speed. Slower fans are supposed to be quieter.
dBA = sound pressure at metering curve (A), the lower the better.

So, b. would be my choice, if any.

The dB scale is ...

I have a Power Mac G4 Mirrored Drive Door. My stock fan is DELTA AFB1212SHE 120mm X 38mm 150 CFM FAN 6942, 3700 RPM, 53dBA.

I am looking for a computer fan to buy, what are these term mean?

1) CFM (I know it has something to do with air flow power, lower number the better or higher number the ...