Installing iMac G3 Model M4984 Logic Board

User-Contributed Guide

User-Contributed Guide

This guide is not managed by iFixit staff.

  • Author: Chris Green
  • Time required: 20 Minutes - 1 Hour
  • Difficulty: Easy
  • Add Note x

The iMac G3 (Tray-Loading)

The iMac G3 was Apple's new G3 all-in-one. It had tons of new features, and removed all old interfaces. It was released in 1998, and sported a 266Mhz, or 333Mhz PowerPC G3. It also came in five colors: tangerine, blueberry, lime, grape, and strawberry. These were known as the "5 Flavors."

Tools
Relevant parts
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Add Note Edit Step 1 — Logic Board  ¶ 

  • The iMac G3. This was a great computer for the time, and had plenty of features.

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Add Note Edit Step 2  ¶ 

  • Start by flipping the iMac upside-down. It may help to lay it on a towel, so you don't damage the screen, or scratch the face.

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Add Note Edit Step 3  ¶ 

  • Remove this Phillips screw.

  • Using a flathead screwdriver, work your way around the bottom cover, until it comes off.

  • Then, lift the bottom cover up and out, and set it aside.

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Add Note Edit Step 4  ¶ 

  • Now, remove the DB-15 Video connector from the logic board.

  • It may be helpful to use a Phillips screwdriver to remove the thumbscrews.

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Add Note Edit Step 5  ¶ 

  • Remove the power cable from the logic board assembly.

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Add Note Edit Step 6  ¶ 

  • Remove the front panel connector.

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Add Note Edit Step 7  ¶ 

  • Now, remove these Phillips screws.

  • Now, grab the logic board assembly by the piece of plastic, and lift it out.

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Add Note Edit Step 8  ¶ 

  • The logic board assembly. This is the heart of the computer, it contains the motherboard, CPU, RAM, V-RAM, PRAM battery, the hard drive, and the optical drive.

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

For more information, check out the iMac G3 Model M4984 device page.

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