HP Pavilion dv4-2100 HP Pavilion dv4 Entertainment PC - Maintenance and Servic - Page 97

Heat sink assembly

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Heat sink assembly Removal and replacement procedures Description System board (includes replacement thermal material) UMA graphics subsystems Discrete graphics subsystems Spare part number 591957-001 591956-001 Before removing the 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 battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard Drive (see "Hard Drive" on page 4-8) b. Memory module (see "Memory module" on page 4-10) c. Mini Card compartment cover (see "RTC battery" on page 4-12) d. WLAN module (see "WLAN module" on page 4-15) e. Optical drive (see "Optical drive" on page 4-19) f. Keyboard (see "Keyboard" on page 4-20) g. Keyboard cover (see "Keyboard cover" on page 4-23) h. Speaker assembly (see "Speaker assembly" on page 4-26) i. Display assembly (see "Display assembly" on page 4-27) j. Top cover (see "Top cover" on page 4-34) k. System board (see "System board" on page 4-50) Maintenance and Service Guide 4-55

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Removal and replacement procedures
Maintenance and Service Guide
4–55
Heat sink assembly
Before removing the 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 battery (see
“Battery” on page 4-7
).
5. Remove the following components:
a.
Hard Drive (see
“Hard Drive” on page 4-8
)
b.
Memory module (see
“Memory module” on page 4-10
)
c.
Mini Card compartment cover (see
“RTC battery” on page 4-12
)
d.
WLAN module (see
“WLAN module” on page 4-15
)
e.
Optical drive (see
“Optical drive” on page 4-19
)
f.
Keyboard (see
“Keyboard” on page 4-20
)
g.
Keyboard cover (see
“Keyboard cover” on page 4-23
)
h.
Speaker assembly (see
“Speaker assembly” on page 4-26
)
i.
Display assembly (see
“Display assembly” on page 4-27
)
j.
Top cover (see
“Top cover” on page 4-34
)
k.
System board (see
“System board” on page 4-50
)
Description
Spare part number
System board (includes replacement thermal material)
UMA graphics subsystems
591957-001
Discrete graphics subsystems
591956-001