Memory module
Description Spare part number
For use only on computer models with model numbers m3-u100 through m3-u199):
8.0-GB PCL3 12800 1600 691740-005
4.0-GB PCL3 12800 1600 693374-005
For use only on computer models with model numbers m3-u000 through m3-u099):
8.0-GB 2133 DDR4 820570-005
4.0-GB 2133 DDR4 820569-005
2.0-GB 2133 DDR4 851379-005
Before removing the memory module, follow these steps:
1. Shut down the computer.
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 keyboard/top cover (see Keyboard/top cover on page 34), and then remove
the following components:
a. Battery (see Battery on page 42).
b. USB port shield (see USB port shield on page 50).
c. System board (see System board on page 51).
Remove the memory module(s):
1. Turn the system board upside down with the front toward you.
58 Chapter 5 Removal and replacement procedures for authorized service provider parts
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