Gateway 7210 System Manual page 58

4
Insert the new DIMM into the socket and align the two notches in the
DIMM with the two notches in the DIMM socket.
5
Gently press the DIMM into the socket until it is firmly seated. Inserting
the DIMM automatically locks the socket clamps on each end of the
DIMM.
6
Close the case. (See "Closing the case" on page 27.)
7
Reconnect the peripherals and the power cord, then turn on the system.
51
Memory