HP ProBook 640 G2 Notebook PC, HP ProBook 645 G2 Notebook PC, HP ProBook 650 G2 Notebook PC and HP ProBook 655 G2 Notebook PC - Maintenance and Service Guide
5. Remove the keyboard (8).
Reverse this procedure to install the keyboard.
Memory
Description Spare part number
Memory
2GB PC3L 12800 1600MHz shared memory 691739-001
4GB PC3L 12800 1600MHz shared memory 691740-001
8GB PC3L 12800 1600MHz shared memory 693374-001
4GB 2133MHz 1.2v DDR4 shared memory 820569-001
8GB 2133MHz 1.2v DDR4 shared memory 820570-001
IMPORTANT: Make special note of each screw and screw lock size and location during removal and
replacement
Component replacement procedures 51