Lenovo ThinkPad X200 7454 Hardware Maintenance Manual page 101

Table 11. Removal steps of dimm (continued)
For ThinkPad X201, X201i, and X201s:
When installing: Insert the notched end of the DIMM into the socket. Press the
DIMM firmly, and pivot it until it snaps into the place. Make sure that it is
firmly fixed in the slot and does not move easily.
93
Removing and replacing a FRU