HP Compaq dc7100 DT Hardware Reference Manual page 27

Hardware Reference Guide
7. To remove a module,
a. Press out on both latches 1 of the DIMM socket at the same
time. This releases the module and partially pushes it out of
the socket.
b. Lift the module from the socket 2.
Removing Memory Modules
www.hp.com
Hardware Upgrades
2–15