Removing the heat sink and fan assembly

To replace the heat sink and fan assembly, do the following:

1.Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2.Remove the computer cover. See “Removing the computer cover” on page 40.

3.Lay the computer on its side for easier access to the system board.

4.Locate the heat sink and fan assembly. See “Locating parts on the system board” on page 13.

5.Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system board. See “Locating parts on the system board” on page 13.

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

b.Partially remove screw

1 , then fully remove screw

3 , then fully remove screw

2 , and then fully remove screw

4 , and then fully remove screw

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 41. Removing the heat sink and fan assembly

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

Notes:

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

•Do not touch the thermal grease while handling 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 holes on the system board.

Note: Position the new heat sink and fan assembly so that the heat sink and fan assembly cable is toward the microprocessor fan connector on the system board.

Chapter 5. Installing or replacing hardware 61

10AB000KUS specifications

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Lenovo 10AB000KUS manual Removing the heat sink and fan assembly

Models: 10AB000KUS

Figure 41. Removing the heat sink and fan assembly

10AB000KUS specifications