Filter
Top Products
Removal and replacement procedures
Maintenance and Service Guide 4–51
Fan/heat sink assembly
✎
The fan/heat sink assembly spare kit includes replacement thermal material.
✎
To properly ventilate the computer, allow at least a 7.6-cm (3-in) clearance on the right side and rear panel of the
computer. The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is
designed to turn on automatically when high temperature conditions exist. These conditions are affected by high
external temperatures, system power consumption, power management/battery conservation configurations,
battery fast charging, and software requirements. Exhaust air is displaced through the ventilation grill located on
the left side of the computer.
Before removing the fan/heat sink assembly, 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 4-7).
5. Remove the following components:
a. Primary and secondary hard drive covers (see
“Hard drive covers” on page 4-9)
b. Primary and secondary hard drives (see
“Hard drive” on page 4-12)
c. Optical drive (see
“Optical drive” on page 4-8)
d. Memory module (see
“Memory module” on page 4-14
e. WLAN module (see “WLAN module” on page 4-15)
f. Switch cover and keyboard (see
“Switch cover and keyboard” on page 4-21)
g. Speaker assembly (see
“Speaker assembly” on page 4-26)
h. Bluetooth module (see
“Bluetooth module” on page 4-27)
i. Display assembly (see
“Display assembly” on page 4-28)
j. Top cover (see
“Top cover” on page 4-37)
k. System board (see
“System board” on page 4-40)
l. USB board (see
“USB board” on page 4-46)
Remove the fan/heat sink assembly:
✎
Steps 1 through 4 apply only to computer models equipped with discrete graphics subsystem memory. See steps
5 through 8 for information on computer models equipped with UMA graphics subsystem memory.
1. Turn the system board upside down, with the expansion port 3 and external monitor port toward you.
2. Disconnect the fan cable 1 from the system board.
3. Loosen the six Phillips PM2.5×6.0 captive screws 2 that secure the fan/heat sink assembly to the system
board.
Description Spare part number
Thermal module, discrete graphics subsystem (includes fan/heat sink assembly) 533735-001
Thermal module, UMA graphics subsystem memory (includes fan/heat sink
assembly)
533736-001