HP ENVY 14-j100 Maintenance and Service Guide - Page 57

Fan, Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn

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4. Remove the subwoofer (3). NOTE: When removing the subwoofer, make note of the location of the rubber isolators (4). Failure to properly install or damage to these isolators can result in degraded subwoofer performance. Fan Reverse this procedure to install the subwoofer. Description For use only on computer models equipped with a graphics subsystem with discrete memory For use only on computer models equipped with a graphics subsystem with UMA memory Spare part number 818110-001 818109-001 NOTE: To properly ventilate the computer, allow at least 7.6 cm (3 in) of clearance on the left side 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, 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 bottom cover (see Bottom cover on page 28). Remove the fan: Component replacement procedures 47

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4.
Remove the subwoofer
(3)
.
NOTE:
When removing the subwoofer, make note of the location of the rubber isolators
(4)
. Failure to
properly install or damage to these isolators can result in degraded subwoofer performance.
Reverse this procedure to install the subwoofer.
Fan
Description
Spare part number
For use only on computer models equipped with a graphics subsystem with discrete memory
818110-001
For use only on computer models equipped with a graphics subsystem with UMA memory
818109-001
NOTE:
To properly ventilate the computer, allow at least 7.6 cm (3 in) of clearance on the left side 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, 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 bottom cover (see
Bottom cover
on page
28
).
Remove the fan:
Component replacement procedures
47