HP 640 ProBook G3 Notebook PC & HP 650 ProBook G3 Notebook PC - Maintenance and Service Guide

5. Remove the keyboard (8).
Reverse this procedure to install the keyboard.
Memory
Description Spare part number
Memory
4GB 2133MHz 1.2v DDR4 shared memory 820569-002
8GB 2133MHz 1.2v DDR4 shared memory 820570-002
IMPORTANT: Make special note of each screw and screw lock size and location during removal and
replacement
Before removing the memory module, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
50 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts