HP OmniBook 4150 Notebook PC - Manual (Page 60)

Expanding the OmniBook
Installing a RAM Expansion Module
60 User’s Handbook
4. Insert the RAM board into the connector at about a 30° angle until it is fully inserted.
Then press down at both sides until both latches snap closed.
5. Replace the door.
6. Insert the battery.
To remove the RAM board, release the two latches at the sides of the board.