Memory module
Description Spare part number
Memory module (PC4-2400) for use in models with Intel Core processors
8-GB 862398-855
4-GB 862397-855
2-GB 864271-855
Memory module (PC3L-1600) for use in models with Intel Core processors
8-GB 693374-004
4-GB 691740-004
Before removing a memory module, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the bottom cover (see Bottom cover on page 32).
5. Remove the battery (see Battery on page 34).
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.
Component replacement procedures 37
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