Memory module
Description Spare part number
8 GB memory module (PC3, 12800, 1600) 693374-001
4 GB memory module PC3L 12800 1600) 691740-001
Before removing a memory module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn 
the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see Battery on page 29).
5. Remove the service cover (see Service cover on page 30).
Remove the memory module:
NOTE: Note the location of the memory module. If you are replacing it, install the new memory module in 
the same slot.
1. Spread the two retaining tabs (1) on each side of the memory module slot to release 
the memory module. (The memory module tilts up.)
2. Remove the memory module (2) by pulling it away from the slot at a 45 degree angle.
Reverse this procedure to install the memory module.
38 Chapter 5   Removal and replacement procedures for Customer Self-Repair parts