Installing Power Mac G4 MDD CPU Heatsink

User-Contributed Guide

User-Contributed Guide

This guide is not managed by iFixit staff.

  • Author: Chris Green
  • Time required: 5 Minutes - 15 Minutes
  • Difficulty: Moderate
  • Add Note x
  • x 4

The Power Mac G4 MDD had various heatsinks based of the processor, it had a pure copper heatsink for the dual 1.42Ghz model, and a thick finned heatsink for earlier models, and the later models had a thin aluminum finned heatsink.

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Add Note Edit Step 1 — Case  ¶ 

  • 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).

  • Six USB ports.

  • Four FireWire ports.

  • Assorted SCSI (SCSI50/SCSI68)

  • 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:

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Add Note Edit Step 2  ¶ 

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

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Add Note Edit Step 3 — RAM  ¶ 

  • The ram is between the graphics card, and the CPU, and removal is simple. Push the tabs down on both sides, this will free the ram, then lift it out.

  • The MDD Uses A Maximum of 2GB PC2700 DDR,(512MB X4) and had 4 slots for ram.

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