Memory module
Description Spare part number
8192 MB 2400 MHz DDR4 862398-855
4096MB 2400 MHz DDR4 862397-855
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 bottom cover (see Bottom cover on page 29), and then remove the following components:
a. Battery (see Battery on page 31).
b. Front speakers (see Front speakers on page 32).
c. System board mylar (see Left fan on page 45).
Remove the memory module:
1. Release the retention clips holding the memory module in place (1).
2. Slide the memory module out of the connector (2).
Reverse this procedure to install the memory module.
Component replacement procedures 51