Lenovo 30BA User Manual page 144

a. Pull the front fan assembly by the handle to slide it out of the computer chassis.
Note: When you slide out the front fan assembly, avoid pulling the front-fan-assembly cable.
Figure 131. Removing the front fan assembly
b. Disconnect the front-fan-assembly cable from the front-fan-assembly connector on the system
board.
4. To install a new front fan assembly, do the following:
a. Connect the cable of the new front fan assembly to the front-fan-assembly connector on the system
board. See "Parts on the system board" on page 7.
b. Align the top and bottom edges of the new front fan assembly with the two slots in the computer
chassis. Then, slide the new front fan assembly inward until it cannot be pushed in further.
Figure 132. Installing the front fan assembly
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P720 User Guide