Fan/heat sink assembly
NOTE: The fan/heat sink assembly spare kit includes replacement thermal material.
Description Spare part number
For use only with computer models equipped with UMA graphics memory 603690–001
For use only with computer models equipped with discrete graphics memory and a 45 W
processor
604787–001
For use only with computer models equipped with discrete graphics memory and a 35 W
processor
603691–001
NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3-inch) 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:
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 disconnecting the power cord from the AC outlet
and then disconnecting the AC adapter from the computer.
4. Remove the following components:
a.
Battery on page 43
b.
Hard drive cover on page 44
c.
Hard drive on page 45
d.
Optical drive on page 52
e.
Keyboard on page 53
f.
Top cover on page 55
g.
Touchscreen display assembly on page 60 or BrightView display assembly on page 65
h.
USB board on page 75
i.
System board on page 79
82 Chapter 4 Removal and replacement procedures ENWW
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