PCH heat sink

NOTE: The post controller hub (PCH) heat sink spare part kit includes replacement thermal material. Replacement thermal material is also available in the Thermal Material Kit, spare part number 719864-001.

Description

Spare part number

 

 

PCH heat sink

719863-001

 

 

Before removing the PCH heat sink, follow these steps:

1.Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

2.Disconnect the power from the computer by unplugging the power cord from the computer.

3.Disconnect all external devices from the computer.

4.Remove the battery (see Battery on page 47), and then remove the following components:

a.Optical drive (see Optical drive on page 48)

b.Hard drive (see Hard drive on page 49)

c.WLAN module (see WLAN module on page 52)

d.Keyboard (see Keyboard on page 56)

e.Top cover (see Top cover on page 60)

f.System board (see System board on page 73)

Remove the PCH heat sink:

1.Loosen the two captive Phillips screws (1) that secure the PCH heat sink to the system board.

Component replacement procedures 91