Some other models of Macs come with Nap Mode enabled as standard, like the G5 Power Macs and the PowerBook G4, so it's not a risk to use. Nap mode can be installed from For G4 MDD owners, you must download version 3.5.2 of CHUD from this page later versions do not work with MDD Powermacs. This made a massive difference, but also added a new noisy high-pitched sound from the power supply fans.

I also read about a software modification to Mac OSX called Nap Mode, which to cut a long story short, basically cycles the processors down into a 'mini sleep' sort of mode, reducing the temperature and therefore the noise from the fans is quieter. It also cools the Mac just as well as the original Delta fan that came from Apple, only it's about 300% quieter. After that, though, it started to drive me crazy and I started a long campaign to quieten the thing down.įirst thing I did was search Google for information on how to do it, and I found this page, which documents in detail how to replace the main 120mm cooling fan.Īfter trying one fan that just didn't cool the G4 well enough, I found (on ) a SilenX 120x120x38mm fan (18dBA 90CFM) which is whisper quiet. I noticed when I first got it that it was a bit noisier than my old G4 533 Power Mac, but until my girlfriend's mother complained that it kept her awake all night, I didn't really take much notice of it. It has been a faithful servant so far for all sorts of stuff like video editing, music production, photos, web surfing, email and business duties, to name just a few.

It's a Dual 1Ghz machine, which is commonly known as the Mirrored Drive Door (MDD) model due to its mirror finished optical drive doors.

I have owned an awesome Apple Powermac G4 for about two years now.

Power supply for mac powerbook g4