Imac G4 15 700 Mhz Emc 1873 Pram Battery Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          30 minutes

Sections

Outer Base Plate
2 steps
RAM DIMM
1 step
AirPort Card
1 step
Removing the Lower Case
4 steps
Internal RAM
1 step
PRAM Battery
1 step

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BackiMac G4 15" 700 MHz EMC 1873
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Introduction

What you need

Step 1

              Outer Base Plate

Place the computer monitor face down on a safe, harmless surface.
Using a Phillips #00 screw driver, remove the four 6.86 mm screws from the metal plate.

Place the computer monitor face down on a safe, harmless surface.

Using a Phillips #00 screw driver, remove the four 6.86 mm screws from the metal plate.

1024

Step 2

Remove the metal plate from bottom of the iMac G4.
The four screws do not completely separate from the metal plate.

Remove the metal plate from bottom of the iMac G4.

The four screws do not completely separate from the metal plate.

Step 3

              RAM DIMM

Release the tabs on each side of the module by simultaneously pushing each tab away from the RAM.
These tabs lock the module in place and releasing them will cause the module to “pop” up.
Remove the RAM module from the iMac.

Release the tabs on each side of the module by simultaneously pushing each tab away from the RAM.

These tabs lock the module in place and releasing them will cause the module to “pop” up.

Remove the RAM module from the iMac.

Step 4

              AirPort Card

Use a spudger to lift and remove the AirPort’s antenna connector.
This step is only applicable to iMacs that came with an AirPort card installed.

Use a spudger to lift and remove the AirPort’s antenna connector.

This step is only applicable to iMacs that came with an AirPort card installed.

Step 5

              Removing the Lower Case

Remove the four 28.07mm Torx #15 screws from the lower case.

Remove the four 28.07mm Torx #15 screws from the lower case.

Step 6

Open the base by carefully pulling straight off, do not rotate the cover.
Open slowly to ensure that no cables are damaged or disconnected.

Open the base by carefully pulling straight off, do not rotate the cover.

Open slowly to ensure that no cables are damaged or disconnected.

Step 7

Squeeze the small black tab and wiggle gently to remove the colored power cable.
Do not pull directly on the colored wires.
Do not remove black grounding wire.

Squeeze the small black tab and wiggle gently to remove the colored power cable.

Do not pull directly on the colored wires.

Do not remove black grounding wire.

Step 8

Grab both sides of the blue connector and firmly pull to remove it from the mother board.
Do not pull directly on the ribbon cable.

Grab both sides of the blue connector and firmly pull to remove it from the mother board.

Do not pull directly on the ribbon cable.

Step 9

              Internal RAM

Release the tabs on each side of the module by pulling them away from the internal RAM
Once the tabs are pulled the module will “pop” out and you can slowly remove it.

Release the tabs on each side of the module by pulling them away from the internal RAM

Once the tabs are pulled the module will “pop” out and you can slowly remove it.

Step 10

              PRAM Battery

Use a spudger to gently pull the side of the battery out of the socket.
Remove the PRAM battery

Use a spudger to gently pull the side of the battery out of the socket.

Remove the PRAM battery

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

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                                                                                      7 other people completed this guide.

Author

                                      with 3 other contributors

                    Ryan Kozak

Member since: 10/10/2011

1,609 Reputation

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Team

                       Cal Poly, Team 5-32, Amido Fall 2011                        

                                                  Member of Cal Poly, Team 5-32, Amido Fall 2011 



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                                            8 Guides authored

Netmammal - Jul 5, 2017

This is missing a description of re-doing the thermal paste which connects the heat sinks in the top part with the heat sinks in the bottom part. Check elsewhere on the internet for that (don’t look at the other battery replacement guide here on ifixit, that one is criminal in how bad it is, I used to be impressed because that guy had the highest reputation in all of iFixit, now I realized he just gamed the system by putting up zillions of low-quality guides, and letting other people clean up the mess behind him.)

This heat thing is important, as your processor will overheat, and cause your mac to crash randomly.

euato - Dec 29, 2018

More over, once you have opened the mac, I would suggest to change the cpu thermal paste too.

Saying that, my point is that this is the second time I have to change the battery and I have faced a little problem assembling the external RAM (it wont click again) … and I´m still thinking why is mandatory (or at lest it looks like) to removing the external RAM and the airport card in order to open the other part of the computer?

At far as I´m concerned there is not phisical interference with the work, is it?

Tobias Smollett - Nov 28, 2021

To replace the PRAM battery you only need steps 1, 2, 5, 6 and 10. Or check out this guide instead, which includes the thermal paste step: iMac G4 17 800 MHz EMC 1936 PRAM Battery Replacement

Introduction#

What you need#

Team#

Introduction

What you need

Team