iMac (Flat Panel) and iMac (17-inch Flat Panel): Installing or Replacing Memory

This document explains how to install memory into the user-accessible memory slot on the iMac (Flat Panel) or iMac (17-inch Flat Panel).

This article has been archived and is no longer updated by Apple.

Memory, SO-DIMM

Installation Instructions

Follow the instructions in this sheet carefully. Failure to follow these instructions could damage your equipment and void its warranty.

Note: Written and video instructions covering customer-installable parts are available at http://www.info.apple.com/installparts/

Tools Required

The only tool required for this procedure is a Phillips screwdriver size 00 or jeweler's screwdriver size 0. Only gentle pressure should be applied to the very small screws.

Opening the Computer

Warning: Always shut down your computer before opening it to avoid damaging its internal components or causing injury.

1. Unplug all cables from the computer except the power cord.

2. Supporting the neck and the base, lay the computer down on a soft cloth as shown in Figure 1.
Installing Memory. Figure 1

Figure 1

 

3. Loosen the four captive screws at the base of the computer and gently remove the access panel (Figure 2).
Installing Memory. Figure 2

Figure 2

Important: To avoid electrostatic discharge, always ground yourself by touching metal before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed the installation and closed the computer.

4. Touch a metal surface inside the computer (Figure 3). Warning: Do not touch the screws circled below. Loosening these screws could cause the computer to overheat and damage internal components.
Installing Memory. Figure 3

5. Unplug the power cord.

Figure 3

Warning: Do not touch the screws on the bottom housing (Figure 4). Loosening these screws could cause the computer to overheat and damage internal components.
Installing Memory. Figure 4

Figure 4

Installing the Memory Module

Note: If you are replacing a defective memory module, rather than adding a module, remove the defective module before proceeding.

1. Line up the notch on the memory module with the notch on the memory slot (circled in Figure 5).

Figure 5

2. Important: Do not push on the clips (circled in Figure 6) when inserting memory. The clips are used to remove memory from the slot, not to insert memory.

Figure 6

3. Insert the memory module into the memory slot (Figure 7).
Installing Memory. Figure 7

Figure 7

4. Press down gently on the memory until you hear it click into place under the two locking tabs on the sides of the slot (Figure 8).
Installing Memory. Figure 7

Figure 8

Closing the Computer

1. Replace the access panel and tighten the four captive screws (Figure 9).
Installing Memory. Figure 7

Figure 9

2. Reconnect all cables and restart the computer.

Warning: Never turn on the computer unless all of its internal and external parts are in place and it is closed. Operating the computer when it is open or missing parts can damage your computer or cause injury.

These instructions are also available as an Adobe Portable Document Format (PDF) file from the Customer-Installable Parts Web page.

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