Filter
Top Products
Heat sink
NOTE: The heat sink spare part kits include replacement thermal material. Replacement thermal
material is also available in the Thermal Material Kit, spare part numbers 456605-001 and 456606-001.
Description Spare part number
For use only with computer models equipped with UMA graphics subsystem 456605-001
For use only with computer models equipped with discrete graphics subsystem 456606-001
Before removing the heat sink, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 37).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 38)
b. Optical drive (see
Optical drive on page 45)
c. Keyboard (see
Switch cover and keyboard on page 47)
d. Switch cover (see
Switch cover and keyboard on page 47)
e. Speaker (see
Speaker on page 51)
f. Display lid switch module (see
Display lid switch module on page 52)
g. Display assembly (see
Display assembly on page 53)
h. Top cover (see
Top cover on page 58)
i. System board (see
System board on page 66)
Remove the heat sink:
1. Turn the system board upside down, with the USB connectors toward you.
NOTE: Steps 2 and 3 apply only to computer models equipped with graphics subsystems having
discrete memory. See steps 4 and 5 for removing the heat sink on computer models with graphics
subsystems having UMA memory.
2. Following the 1, 2, 3, 4, 5, 6 sequence stamped into the heat sink, loosen the six Phillips
PM2.5×10.0 screws (1) that secure the heat sink to the system board.
Component replacement procedures 71