Lenovo IdeaCentre K315 Hardware Replacement Manual page 30

5. Install the new system fan assembly by aligning the rubber mounts of the
system fan assembly with the holes on the chassis and push the rubber
mounts through the holes.
6. Pull on the tips of the rubber mounts until the fan assembly is in place.
7. Connect the system fan assembly cable to the system fan connector on the
system board.
8. Refer to the "Completing the installation".
Hardware Replacement Guide
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