Lenovo ThinkPad X200 7454 Hardware Maintenance Manual page 100

Table 11. Removal steps of dimm (continued)
Note: For ThinkPad X200, X200s, and X200si, if only one DIMM is used on the
computer you are servicing, the card must be installed in SLOT-0 ( a ), but not
in SLOT-1 ( b ).
For ThinkPad X200, X200s, and X200si:
a b
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ThinkPad X200, X200s, X200si, X201, X201i, and X201s Hardware Maintenance Manual