HP Pavilion dm1-2000 HP Pavilion dm1 Notebook PC - Maintenance and Service Gui - Page 77

Heat sink assembly, Battery, on WLAN module, Drives, Keyboard, Top cover, Display assembly

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Heat sink assembly 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. Description Heat sink assembly (includes replacement thermal material) Spare part number 608629-001 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 36). 5. Remove the following components: a. hard drive cover (see WLAN module on page 38). b. Hard drive (see Drives on page 44). c. Keyboard (see Keyboard on page 47). d. Top cover (see Top cover on page 50). e. Display assembly (see Display assembly on page 58). f. System board (see System board on page 66). Remove the heat sink assembly: 1. Following the 1, 2, 3, 4, 5 sequence stamped into the heat sink assembly, loosen the 5 PM2.0×4.0 captive screws (1) that secure the heat sink assembly to the system board. NOTE: Due to the adhesive quality of the thermal material located between the heat sink assembly and system board components, it may be necessary to move the heat sink assembly from side to side to detach the assembly. Component replacement procedures 69

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Heat sink assembly
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.
Description
Spare part number
Heat sink assembly (includes replacement thermal material)
608629-001
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
36
).
5.
Remove the following components:
a.
hard drive cover (see
WLAN module
on page
38
).
b.
Hard drive (see
Drives
on page
44
).
c.
Keyboard (see
Keyboard
on page
47
).
d.
Top cover (see
Top cover
on page
50
).
e.
Display assembly (see
Display assembly
on page
58
).
f.
System board (see
System board
on page
66
).
Remove the heat sink assembly:
1.
Following the 1, 2, 3, 4, 5 sequence stamped into the heat sink assembly, loosen the 5 PM2.0×4.0
captive screws
(1)
that secure the heat sink assembly to the system board.
NOTE:
Due to the adhesive quality of the thermal material located between the heat sink
assembly and system board components, it may be necessary to move the heat sink assembly
from side to side to detach the assembly.
Component replacement procedures
69