Memory module
Description Spare part number
Memory module (PC3L, 12800, 1600-MHz)
For use in models with 5th generation Intel Core processors, Intel Pentium processors, and Intel Celeron
processors
8-GB 693374-005
4-GB 691740-005
2-GB 691739-005
Memory module (PC4, 17000, 2133-MHz)
For use in models with 6th generation Intel Core processors
8-GB 820570-005
4-GB 820569-005
2-GB 851379-005
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 battery (see Battery on page 32).
5. Remove the optical drive (see Optical drive on page 33).
6. Remove the bottom cover (see Bottom cover on page 39).
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.)
Component replacement procedures 47
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