这就是苹果英文网站上的消息！
Power Mac G4 Power Supply Exchange Program
Power Mac G4 Power Supply Exchange Program Announcement
The Power Mac G4 Power Supply Exchange Program offers owners of Power Mac G4 (Mirrored Drive Doors) computers the option of reducing the operating acoustic level of their computers by exchanging their original power supplies and system fans for new, quieter versions. Participation in the Power Supply Exchange Program is optional.
-------------------------------------------------
The Power Supply Exchange Program kit is available at no charge, with a shipping and handling fee of US$19.95 or equivalent local currency. The kit contains the following items:
--------------------------------------------------
Power supply (360 W)
System fan
Allen key (2.5 mm)
Installation instructions: