Lenovo ThinkCentre M57 Hardware Maintenance Manual - Page 116

Replacing the system fan assembly This procedure describes how to remove and replace the system fan assembly. 1. Remove cover. See "Removing the cover" on page 89. 2. Remove the drive bay assembly. See "Accessing system board components and drives" on page 90. 3. Remove the hard disk drive. See "Replacing the hard disk drive" on page 104. 4. Disconnect the system fan cable from the system board. See "System board connectors" on page 88. 5. Remove the two screws securing the system fan assembly. 6. Remove the system fan assembly by pulling the bracket outward and lifting it up from the system board to remove completely. 7. Install the new system fan assembly and install the two screws that secure the fan assembly. 8. Connect the system fan cable to the system fan connector on the system board. 9. Reinstall the hard disk drive. See "Replacing the hard disk drive" on page 104. 10. Align the drive bay assembly with the two slots and rails on the sides of the chassis and slide the drive bay assembly towards the rear of the chassis until it snaps into position. 11. Reinstall the front bezel. 12. Go to "Completing the FRU replacement" on page 112. 110 Hardware Maintenance Manual