The Logic Off Topic list

>I'm looking for a low noise case for my soon to receive new Apple G4
>dual P.
>Is this as simple as with an PC?

 From today's macfixit.com

Hans Koenig offers a hardware modification that dramatically reduces 
the temperature (and therefore loud fan operation) experienced when 
running Mac OS 9 on a Power Mac G4 Mirrored Drive Door system.

The hardware modification could void Apple's warranty, and should be 
applied with extreme caution, if at all:

"Make (or get someone to make) a connector adapter: fan socket to 
standard hard drive power connector. Connect the fan power lead to 
the 5V HD lead (not the 12 V) and bridge the free fan connector pins 
at the mother board with a 20 ohm 10 watt (18 watt in the picture) 
resistor. (From fan data: 12V 600 ma P= IV = 7.2W)) Plug the fan 
socket into the adapter and the HD socket into one of the available 
free hard drive connectors inside the Mac. The big fan will now run 
constantly but the 5V connection runs it at much reduced speed.

"The resistor is necessary because the heat sensing circuit needs to 
see a load when it decides to supply power to the fan. If the load is 
not there the circuit unceremoniously shuts off the Mac, a nice 
safety feature, Apple! This resistor is big and needs to be mounted 
to the metal side wall of the Mac.

"This Mac running OS 9.2.2 has been exercised for some four days now 
working with Netscape, Canvas, Excel and GraphicConverter open and 
doing their thing: Surfing, manipulating photographs, doing 
statistics pretty much constantly. No temperature rise to note during 
these operations."

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