HP ProBook 640 G1 Maintenance And Service Manual page 78

Description
4-GB (PC3L, 12800, 1600-MHz)
2-GB (PC3L, 12800, 1600-MHz)
To add or replace a memory module:
1. Save your work and shut down the computer.
2. Disconnect AC power and external devices connected to the computer.
3. Remove the battery (see
4. Remove the service cover (see
5. If you are replacing a memory module, remove the existing memory module:
a. Pull away the retention clips (1) on each side of the memory module.
The memory module tilts up.
b. Grasp the edge of the memory module (2), and then gently pull the memory module out of the
memory module slot.
CAUTION:
only. Do not touch the components on the memory module.
To protect a memory module after removal, place it in an electrostatic-safe container.
6. Insert a new memory module:
CAUTION:
not touch the components on the memory module.
70 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts
Battery on page
Service cover on page
To prevent damage to the memory module, hold the memory module by the edges
To prevent damage to the memory module, hold the memory module by the edges only. Do
64).
65).
Spare part number
691740-001
691739-001