HP Dv7-1243cl HP Pavilion dv7 Entertainment PC - Maintenance and Service Guide - Page 115

Heat sink

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Heat sink NOTE: All heat sink spare kits include replacement thermal material. Description Spare part number For use only with computer models equipped with AMD processors and graphics subsystems with 488879-001 discrete memory For use only with computer models equipped with AMD processors and graphics subsystems with 490503-001 UMA memory For use only with computer models equipped with Intel processors and graphics subsystems with 480472-001 and 512-MB of discrete memory 481144-001 For use only with computer models equipped with Intel processors and graphics subsystems with 480473-001 256-MB of discrete memory Before removing the heat sink, 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 54). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. Optical drive (see Optical drive on page 57) c. Switch cover (see Switch cover on page 69) d. Keyboard (see Keyboard on page 71) e. Speaker assembly (see Speaker assembly on page 75) f. Display assembly (see Display assembly on page 76) g. Top cover (see Top cover on page 85) h. System board (see System board on page 94) Remove the heat assembly: NOTE: Steps 1 through 3 apply only to computer models equipped with graphics subsystems with discrete memory. See steps 4 through 6 for heat sink removal instructions for computer models equipped with graphics subsystems with UMA memory. 1. Turn the system board upside down, with the expansion port 3 and external monitor port toward you. 2. Loosen the seven Phillips PM2.0×10.0 captive screws (1) that secure the heat sink assembly to the system board. Component replacement procedures 105

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Heat sink
NOTE:
All heat sink spare kits include replacement thermal material.
Description
Spare part number
For use only with computer models equipped with AMD processors and graphics subsystems with
discrete memory
488879-001
For use only with computer models equipped with AMD processors and graphics subsystems with
UMA memory
490503-001
For use only with computer models equipped with Intel processors and graphics subsystems with
512-MB of discrete memory
480472-001 and
481144-001
For use only with computer models equipped with Intel processors and graphics subsystems with
256-MB of discrete memory
480473-001
Before removing the heat sink, 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
54
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
59
)
b.
Optical drive (see
Optical drive
on page
57
)
c.
Switch cover (see
Switch cover
on page
69
)
d.
Keyboard (see
Keyboard
on page
71
)
e.
Speaker assembly (see
Speaker assembly
on page
75
)
f.
Display assembly (see
Display assembly
on page
76
)
g.
Top cover (see
Top cover
on page
85
)
h.
System board (see
System board
on page
94
)
Remove the heat assembly:
NOTE:
Steps 1 through 3 apply only to computer models equipped with graphics subsystems with
discrete memory. See steps 4 through 6 for heat sink removal instructions for computer models equipped
with graphics subsystems with UMA memory.
1.
Turn the system board upside down, with the expansion port 3 and external monitor port toward
you.
2.
Loosen the seven Phillips PM2.0×10.0 captive screws
(1)
that secure the heat sink assembly to
the system board.
Component replacement procedures
105