Lenovo ThinkPad W541 (English) Hardware Maintenance Manual - ThinkPad T540p, W - Page 95
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• "1160 Magnesium structure frame" on page 85 Removal steps of the thermal fan assembly For integrated-graphics models: Detach the thermal fan assembly connector, and then loosen the screws 2 in ascending alphabetical order (a to d) as illustrated. 1 2d 2b 2a 2c For discrete-graphics models: Detach the thermal fan assembly connector, and then loosen the screws 2 in ascending alphabetical order (a to g) as illustrated. 1 2d 2b 2a 2c 2f 2g 2e When installing: • Ensure that the fan connector is attached firmly. • Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams. Either too much or too less application of grease can cause a thermal problem due to imperfect Chapter 9. Removing or replacing a FRU 89