Lenovo 3000 H305 Hardware Maintenance Manual page 42

Hardware Maintenance Manual
40
To replace the system fan:
1. Remove the computer cover. Refer to "Removing the computer cover".
2. Remove the front bezel. Refer to "Removing the front bezel".
3. Remove the optical disk drive. Refer to "Replacing the optical disk drive".
4. Remove the 2 screws that secure the vent and system fan to the heatsink.
5. Disconnect the power cable from the motherboard.
6. Lift up the system fan.
7. Connect the new fan power cable to the motherboard, align and then
screw back the new system fan.
8. Screw back the optical disk drive bay to the chassis.
9. Install back the front bezel and computer cover.