Reducing Power Mac G4 MDD noise: Picture of the problem/solution; should Apple switch to standard power supplies?
Picture of the problem/solution Thanks to a MacFixIt reader who goes by "MDD867," we've got a diagrammed picture of one home-made solution for reducing the noise generated by the Power Mac G4 MDD.
- The reader's solution involves several elements including:
- Removing the internal speaker so air supply fans can pull more fresh air
- Installing Thermaltake Volcano 5 fans wrapped in neoprene to the front of the power supply
- Using a quiet, Enermax UC-112FAB fan model for the heatsink
- Using a paperboard spoiler to force more air through the heatsink
- Removing the PCI slot covers to increase airflow
The best part of MDD867's solution is that all of the components are completely reversible to their original state - no major rewiring, soldering or other metal work is involved. However, it should be noted that your Apple warranty will still be voided if you choose to make these changes.
Click here to see the diagrammed picture on this story's individual page (look near the bottom of the body text).
Should Apple switch to standard power supplies? Several readers have suggested that Apple extend its policy of adopting industry-standard technologies like USB and AGP to its power supplies.
Power Supplies have generated a large portion of the Power Mac G4 MDD noise complaints, and have even spurred criticism from Power Mac G4 QuickSilver models that sport similarly loud power supply fans.
Michael Alderete writes:
"Since the number one source of noise in these systems seems to consistently be the power supply (PSU), I have to wonder if Apple wouldn't benefit hugely if they switched to using a standard ATX power supply. There are quiet varieties in abundance. I would glady pay $200 for a new PSU that was silent (most PC PSUs cost under $100), while others may prefer to live with a little noise, and keep the cash in their pockets. Using the ATX form factor would make the choice possible."
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