Lenovo 3000 C305 All-In-One - Manual (Page 59)

Chapter 7. Replacing hardware
57
Replacing the CPU heat sink
To replace the CPU heat sink
1. Remove the computer cover. Refer to “Removing the computer cover”.
2. Remove the LCD panel. Refer to steps 2 to 4 of the Replacing the LCD
panel section.
3. Disconnect all the cables from the upside of the system board.
4. Remove the eight screws that secure the system board to the chassis.
5. Pull the system board away from the chassis and disconnect all the
cables away from the underside of the system board.