If it helps, I run ALL the big fans (cpu + 3 case) @ 7v instead of 12v in my PC tower which makes it quite a lot quieter - with no overheating problems. Not sure how hard this is with a MAC, if the fans are powered off molex connectors very easy. see http://www.procooling.com/articles/html/quiet_fans _-_power_control_met.shtml for details. (I'm in no way affiliated with the website). Bear in mind though that I live in England which is a cold country! If your machine room/office/whatever gets hot, I wouldn't bother.
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To add to the pedantry, I believe the imperial system of measurements was itself in turn derived from the romans.
If it helps, I run ALL the big fans (cpu + 3 case) @ 7v instead of 12v in my PC tower which makes it quite a lot quieter - with no overheating problems. Not sure how hard this is with a MAC, if the fans are powered off molex connectors very easy. see http://www.procooling.com/articles/html/quiet_fans _-_power_control_met.shtml for details. (I'm in no way affiliated with the website). Bear in mind though that I live in England which is a cold country! If your machine room/office/whatever gets hot, I wouldn't bother.
I take it you're referring to those "good Americans" Karl Benz and Charles Babbage. Hmmmn....