Lenovo THINKPAD E10 Hardware Maintenance Manual page 90

Table 21. Removal steps of system board, fan assembly, and backup battery (continued)
When installing:
Make sure that the connectors are attached firmly.
When installing:
Before you attach the fan assembly to the system board, you need to peel the thin film off from the thermal rubbers
as shown in this figure.
For AMD models:
For Intel models:
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ThinkPad Edge 11" and E10 Hardware Maintenance Manual