Memory module
Description Spare part number
8-GB (PC3L, 12800, 1600-MHz) 693374-001
4-GB (PC3L, 12800, 1600-MHz) 691740-001
2-GB (PC3L, 12800, 1600-MHz) 691739-001
Before removing a memory module, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 49).
5. Remove the service cover (see
Service cover on page 55).
To remove a memory module:
1. Spread the 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 an angle.
Reverse this procedure to install a memory module.
56 Chapter 4 Removal and replacement procedures
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