Installing Power Mac G4 MDD Power Supply

User-Contributed Guide

User-Contributed Guide

This guide is not managed by iFixit staff.

  • Author: Chris Green
  • Time required: 30 Minutes - 1 Hour
  • Difficulty: Difficult
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The Power Mac G4 MDD Used a uniquely shaped 344W or 400W AcBel or Samsung Power Supply. It had a 24-Pin Connector (not 24-Pin ATX!) and the original AcBel power supplies were notoriously loud, and earned the Power Mac G4 MDD the nickname "WindTunnel," since the computers were so loud.

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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 — Hard Drives  ¶ 

  • The hard drive cages are located here.

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