Lenovo TS200V manual Lift the failing heat sink and fan assembly off the system board

6.Follow this sequence to remove the four screws that secure the heat sink and fan assembly to the system board:

a.Partially remove screw 1, then fully remove screw 2, and then fully remove screw 1.

b.Partially remove screw 3, then fully remove screw 4, and then fully remove screw 3.

Note: Carefully remove the four screws from the system board to avoid any possible damage to the system board. The four screws cannot be removed from the heat sink and fan assembly.

Figure 25. Removing the heat sink and fan assembly

7.Lift the failing heat sink and fan assembly off the system board.

Notes:

a.You might have to gently twist the heat sink and fan assembly to free it from the microprocessor.

b.When handling the heat sink and fan assembly, do not touch the thermal grease on the bottom of the heat sink and fan assembly.

8.Position the new heat sink and fan assembly on the system board so that the four screws are aligned with the corresponding holes in the system board. Make sure that the heat sink and fan assembly cable can be easily connected to the microprocessor fan connector on the system board.

9.Follow this sequence to install the four screws to secure the heat sink and fan assembly, as shown in Figure 25.

a.Partially tighten screw 1, then fully tighten screw 2, and then fully tighten screw 1.

b.Partially tighten screw 3, then fully tighten screw 4, and then fully tighten screw 3.

Chapter 5. Installing or replacing customer replaceable units 35