HP Compaq dc7100 DT Reference Manual page 92

Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis
The computer automatically recognizes the additional memory when the computer is turned on.
To reassemble the computer, reverse the removal procedure.
If you normally lock the Smart Cover Lock, use Computer Setup to relock the lock and enable
the Smart Cover Sensor.
6–12 361288-003 Service Reference Guide, dc7100