iMac G4 17 800 MHz EMC 1936 Battery Replacement

Member-Contributed Guide

Member-Contributed Guide

An awesome member of our community made this guide. It is not managed by iFixit staff.

iMac G4/800 17-Inch (Flat Panel) Specs iMac 17" Flat Panel - M8812LL/A - PowerMac4,5 - M6498 - EMC 1936

  • Author: mayer
  • Difficulty: Moderate

Pre-Installed MacOS 9.2.2 & X 10.1.2

Maximum MacOS X 10.4.11

This model is capable of booting in MacOS 9 and using MacOS 9 applications within the MacOS X "Classic" environment.

Standard RAM 256 MB Maximum RAM: 1.0 GB

RAM Type PC133 SDRAM Min. RAM Speed 10 ns

Details: Although Apple's original specifications stated that it shipped with PC100 RAM, Apple later warned that "PC100 RAM is not to be used with iMac (Flat Panel) computers and may create performance and reliability issues".

*There is one factory installed memory module in a 168-pin DIMM slot and one 144-pin user-accessible SO-DIMM slot.

  • Standard Hard Drive 60 GB (5400 RPM) Int. HD Interface Ultra ATA/66

Standard Optical 2X "SuperDrive" Standard Disk: None

Details: Apple reports that the tray-loading DVD-R/CD-RW SuperDrive "writes DVD-R discs at 2x speed, reads DVDs at 6x speed, writes CD-R discs at 8x speed, writes CD-RW discs at 4x speed, and reads CDs at 24x speed."

Also see: What are the capabilities of the optical drive provided by the iMac G4 models? How do you replace or upgrade the optical drive?

Standard Modem 56k v.90 Standard Ethernet 10/100Base-T

Standard AirPort 802.11b (Optional) Standard Bluetooth None

USB Ports 3 (1.1) Firewire Ports: 2 (400)

Standard AirPort: 802.11b (Optional) Standard Bluetooth: None

PRAM battery 3.6V half-AA

Image #1

Edit Step 1 Battery  ¶ 

  • G4 bottom Plate with four captive Phillips screws

  • The bottom of the plate will list the serial number, MHz of the machine, standard RAM and hard drive size

Image #1

Edit Step 2  ¶ 

  • Here the plate has been removed exposing the slot for the Airport Card and User added RAM slot.

Image #1

Edit Step 3  ¶ 

  • Remove the four T15 torx screws.

  • Set the unit on it's base, grasp the neck and tilt it to separate the base.

Image #1

Edit Step 4  ¶ 

  • The IDE cable unplugs first.

  • Locate the 3.6 volt 1/2 AA Lithium PRAM battery on the logic board and replace it.

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

For more information, check out the iMac G4 17 800 MHz EMC 1936 device page.

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