HP Pavilion dv9100 - Entertainment Notebook PC Maintenance And Service Manual page 130

Removal and Replacement Procedures
5. Spread the retaining tabs 1 on each side of the memory
module socket to release the memory module. (The edge
of the module opposite the socket rises away from the
computer.)
6. Slide the module 2 away from the socket at an angle.
✎
Memory modules are designed with a notch 3 to prevent
incorrect installation into the memory module socket.
Removing a Memory Module
Reverse the above procedure to install a memory module.
5–14 Maintenance and Service Guide