HP 15 TouchSmart Notebook PC HP 15 Notebook PC Compaq 15 TouchSmart Notebook PC Compaq 15 Notebook PC - Maintenance and Service Guide

Reverse this procedure to install the speakers.
Heat sink assembly
NOTE: The heat sink assembly spare part kit includes replacement thermal materials.
Description Spare part number
Heat sink for use in models with an AMD processor, UMA graphics, and 1 memory slot 753895-001
Heat sink for use in models with an AMD processor, discrete graphics, and 1 memory slot 762728-001
Heat sink for use in models with an AMD processor, discrete graphics, and 2 memory slots 788561-001
Heat sink for use in models with an AMD processor, UMA graphics, and 2 memory slots 788562-001
NOTE: To properly ventilate the computer, allow at least 7.6 cm (3.0 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 aected by
high external temperatures, system power consumption, power management/battery conservation
congurations, 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 heat sink assembly, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst 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 31), and then remove the following components:
Keyboard (see Keyboard on page 35)
Top cover (see Top cover on page 43)
WLAN module (see WLAN module on page 51)
System board (see System board on page 56)
To remove the heat sink assembly:
1. Position the system board upside down.
2. Loosen the screws on the heat sink (1) that secure the heat sink assembly to the system board.
Component replacement procedures 61