Lenovo ThinkPad T400 6474 Hardware Maintenance Manual page 122

Table 23. Removal steps of fan assembly (continued)
- For R400 switchable graphics models:
a
b
a
v Make sure that the fan connector is attached firmly.
v When attaching the fan assembly to the frame, take care not to damage the
heat sink ( b ) of the fan assembly.
b
b
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ThinkPad T400 and R400 Hardware Maintenance Manual