Lenovo T420i manual For Integreted Graphics models When installing, For Discrete Graphics models

For Integreted Graphics models:

When installing:

•Before you attach the fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on

the parts marked as in the following figures. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component. For the fan in the integrated graphics models, you need to peel the thin film off from the thermal rubber marked b .

For Discrete Graphics models:

ab

For Integrated Graphics models:

Chapter 8. Removing and replacing a FRU 99