HP ENVY 13-ah1000 Maintenance and Service Guide - Page 46

Fan/heat sink assembly

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Fan/heat sink assembly NOTE: All fan/heat sink assembly spare part kits include replacement thermal material. Description For use only on computer models equipped with a graphics subsystem with discrete video memory For use only on computer models equipped with a graphics subsystem with UMA video memory Spare part number L19526-001 L19527-001 Before removing the fan/heat sink assembly, follow these steps: 1. Turn off 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 the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer. 3. Disconnect all external devices from the computer. 4. Remove the bottom cover (see Bottom cover on page 26). 5. Disconnect the battery cable from the system board (see Battery on page 28). 6. Remove the system board (see System board on page 34). Remove the fan/heat sink assembly: NOTE: Steps 1 and 2 apply to computer models equipped with a graphics subsystem with discrete memory. See steps 3 and 4 for information for computer models equipped with a graphics subsystem with UMA memory. 1. Loosen the six Phillips M2.0×6.3 captive screws (1) that secure the discrete fan/heat sink assembly to the system board. 2. Remove the two Phillips M2.0×6.3 screws (2) that secure the discrete fan/heat sink assembly to the system board. 38 Chapter 5 Removal and replacement procedures

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Fan/heat sink assembly
NOTE:
All fan/heat sink assembly spare part kits include replacement thermal material.
Description
Spare part number
For use only on computer models equipped with a graphics subsystem with discrete video memory
L19526-001
For use only on computer models equipped with a graphics subsystem with UMA video memory
L19527-001
Before removing the fan/heat sink assembly, follow these steps:
1.
Turn off 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 the power from the computer by first unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
3.
Disconnect all external devices from the computer.
4.
Remove the bottom cover (see
Bottom cover
on page
26
).
5.
Disconnect the battery cable from the system board (see
Battery
on page
28
).
6.
Remove the system board (see
System board
on page
34
).
Remove the fan/heat sink assembly:
NOTE:
Steps 1 and 2 apply to computer models equipped with a graphics subsystem with discrete memory.
See steps 3 and 4 for information for computer models equipped with a graphics subsystem with UMA
memory.
1.
Loosen the six Phillips M2.0×6.3 captive screws
(1)
that secure the discrete fan/heat sink assembly to
the system board.
2.
Remove the two Phillips M2.0×6.3 screws
(2)
that secure the discrete fan/heat sink assembly to
the system board.
38
Chapter 5
Removal and replacement procedures