Memory modules
Description Spare part number
SODIMM, 8 GB, 2400 MHz, 1.2 v, DDR4 862398-855
SODIMM, 16 GB, 2400 MHz, 1.2 v, DDR4 865396-855
NOTE: It is not necessary to remove the memory module to remove the system board. Remove the memory
module only if it needs to be replaced.
Follow these steps to remove the memory modules:
1. Shut down the computer. If you are unsure whether the computer is o or in hibernation, turn the
computer on, 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 top cover (see Top Cover on page 14).
5. Remove the fans (see Fans on page 16).
6. Remove the antenna (see Antennas on page 18).
7. Remove the battery (see Battery on page 19).
8. Remove the SSD (see Solid state drive on page 20).
9. Remove the heat sink (see Heat sink on page 21).
10. Press in on the sides of the DIMM memory modules cover (1), then lift and remove the cover from the
modules (2).
11. Spread the two retention clips outward (1) until the memory modules tilt up at a 45-degree angle.
22 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts
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