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はじめに

The Power Mac G4 MDD Uses two system fans, an optical fan (for the optical drives), and a main system fan (cools the CPU, the hard drives, and the graphics card).

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  1. Power Mac G4 MDD System Fans Replacement, Case: 手順 1、 2の画像 1 Power Mac G4 MDD System Fans Replacement, Case: 手順 1、 2の画像 2
    • The Power Mac G4 MDD: the last, and the fastest G4-based Mac. This computer boasted up to a Dual 1.42GHz PowerPC G4 CPU (though I have a single 1.25GHz).

    • Two USB 1.1 Ports

    • Assorted Audio

    • Video (ADC & DVI)

    • Networking (RJ-45 Ethernet/56k Modem)

    • Some later model MDD's (such as the dual 1.42GHz) Have a FireWire 800 Port Here:

  2. Power Mac G4 MDD System Fans Replacement: 手順 2、 3の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 2、 3の画像 2 Power Mac G4 MDD System Fans Replacement: 手順 2、 3の画像 3
    • Unplug the computer.

    • Unplug the power supply and all external connections from the computer.

    • Pull on the side lever and lower the side of the case.

  3. Power Mac G4 MDD System Fans Replacement, Hard Drives: 手順 3、 1の画像 1
    • The hard drive cages are located here.

  4. Power Mac G4 MDD System Fans Replacement: 手順 4、 3の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 4、 3の画像 2 Power Mac G4 MDD System Fans Replacement: 手順 4、 3の画像 3
    • Cage 1

    • Start by removing this screw.

    • Remove the ATA-66/ IDE ribbon cable from the motherboard.

  5. Power Mac G4 MDD System Fans Replacement: 手順 5、 2の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 5、 2の画像 2
    • Now, remove the power connection from the drives.

  6. Power Mac G4 MDD System Fans Replacement: 手順 6、 3の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 6、 3の画像 2 Power Mac G4 MDD System Fans Replacement: 手順 6、 3の画像 3
    • Push this tab down, and pull the cage toward you.

    • Now, you can set cage 1 aside.

  7. Power Mac G4 MDD System Fans Replacement: 手順 7、 2の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 7、 2の画像 2
    • Cage 2:

    • Remove this Phillips screw:

    • Disconnect this IDE ribbon cable from the logic board.

  8. Power Mac G4 MDD System Fans Replacement: 手順 8、 2の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 8、 2の画像 2
    • It's likely that there is a cable clip holding the ribbon cable to the case.

    • To remove it, push the end, and it should pop up.

  9. Power Mac G4 MDD System Fans Replacement: 手順 9、 3の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 9、 3の画像 2 Power Mac G4 MDD System Fans Replacement: 手順 9、 3の画像 3
    • With the ribbon cable clip free, pull this tab towards you, slide the cage up until it hits the platform under the power supply, and pull it away.

    • Now, set the cage on top of the CPU, and remove the power connectors.

  10. Power Mac G4 MDD System Fans Replacement: 手順 10、 2の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 10、 2の画像 2
    • Once the cables are free, set the drive cage aside.

    • To remove the hard drives from the cages, remove the four screws on the sides of the cage that are connected to the drives, then slide the drives out.

    • The two cages are cross compatible and can be put in either location.

    • The MDD does not have a 128GB drive limit like older Macs. My MDD has 3 drives (a 400GB Hitatchi Deskstar, 40GB Seagate Barracuda 7200.7, and a 30GB Quantum Fireball LCT).

    • Note the ID jumpers on the two drive set. One is set to Master, the other to slave. A single drive can be set to Cable Select.

  11. Power Mac G4 MDD System Fans Replacement, Optical Drive Cage: 手順 11、 2の画像 1 Power Mac G4 MDD System Fans Replacement, Optical Drive Cage: 手順 11、 2の画像 2
    • Start removing the optical drive cage by removing its back cover.

  12. Power Mac G4 MDD System Fans Replacement: 手順 12、 3の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 12、 3の画像 2 Power Mac G4 MDD System Fans Replacement: 手順 12、 3の画像 3
    • Now, remove the IDE and power cables from the drives.

  13. Power Mac G4 MDD System Fans Replacement: 手順 13、 3の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 13、 3の画像 2 Power Mac G4 MDD System Fans Replacement: 手順 13、 3の画像 3
    • Remove these two Phillips screws:

    • Pull the cage away from the front until it is free.

    • Slide the cage towards you, and out of the Mac.

  14. Power Mac G4 MDD System Fans Replacement: 手順 14、 2の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 14、 2の画像 2
    • To remove the drive(s) from the cage, remove the two screws on each side of the drive(s), then pull the drive out of the cage.

    • My MDD has a 3rd party 22X SuperDrive, for burning DVD's in Leopard (Thank You Generic Drive Support!)

  15. Power Mac G4 MDD System Fans Replacement, System Fan: 手順 15、 2の画像 1 Power Mac G4 MDD System Fans Replacement, System Fan: 手順 15、 2の画像 2
    • You may find removing the system fan is unnecessary to remove the power supply cable from behind it, but if you're unfamiliar with how the power supply cable is situated behind the fan, this step is useful in seeing this.

    • Disconnect the optical drive IDE/ATA-33 cable from the logic board.

    • Disconnect the system fan 2-wire power cable connector from the logic board.

  16. Power Mac G4 MDD System Fans Replacement: 手順 16、 3の画像 1 Power Mac G4 MDD System Fans Replacement: 手順 16、 3の画像 2 Power Mac G4 MDD System Fans Replacement: 手順 16、 3の画像 3
    • Grab the system fan by its sides and pull it up and out. The system fan is very large and loud, compared to standard sized fans.

終わりに

To reassemble your device, follow these instructions in reverse order.

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Chris Green

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Das waren halt noch service- und support-freundliche Macs …

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