Removal and replacement procedures
Maintenance and Service Guide 4–43
Heat sink assembly
✎
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 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. Accessory compartment cover (see “Keyboard” on page 4-21)
b. Hard drive (see “Hard drive” on page 4-18)
c. Keyboard (see “Keyboard” on page 4-21)
d. Top cover (see “Top cover” on page 4-24)
e. Display assembly (see “Display assembly” on page 4-31)
f. System board (see “System board” on page 4-38)
g. Fan (see “Fan” on page 4-42)
Description Spare part number
Heat sink assembly (includes replacement thermal material)
For use with the HP Mini and Compaq Mini 580059-001
For use with the HP Pavilion 580058-001
