HP ENVY 14t-1200 HP ENVY 14 Notebook PC - Maintenance and Service Guide - Page 81

and the heat sink that services

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7. Disconnect the battery charger board ribbon cable from the system board (see Battery connector board on page 54). 8. Remove the top cover (see Top cover on page 56). 9. Disconnect the optical drive cable from the system board (see Optical drive on page 65). 10. Remove the system board (see System board on page 68). Remove the fan/heat sink assembly: 1. Turn the system board upside down with the front toward you. 2. Disconnect the two fan cables (1) from the system board. 3. Loosen the nine captive screws (2) that secure the fan/heat sink assembly to the system board. 4. Remove the fan/heat sink assembly (3). NOTE: Due to the adhesive quality of the thermal material located between the fan/heat sink assembly and system board components, it may be necessary to move the fan/heat sink assembly from side to side to detach it. NOTE: The thermal material must be thoroughly cleaned from the surfaces of the fan/heat sink assembly and the processor each time the fan/heat sink assembly is removed. ● Thermal paste is used on the processor (1) and the heat sink section (2) that services it ● A thermal pad is used on the PCH chip (3) and the heat sink section (4) that services it ● Thermal paste is used on the graphics subsystem chip (5) and the heat sink section (6) that services it Replacement thermal material is included with all fan/heat sink assembly, system board, and processor spare part kits. Component replacement procedures 73

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7.
Disconnect the battery charger board ribbon cable from the system board (see
Battery connector
board
on page
54
).
8.
Remove the top cover (see
Top cover
on page
56
).
9.
Disconnect the optical drive cable from the system board (see
Optical drive
on page
65
).
10.
Remove the system board (see
System board
on page
68
).
Remove the fan/heat sink assembly:
1.
Turn the system board upside down with the front toward you.
2.
Disconnect the two fan cables
(1)
from the system board.
3.
Loosen the nine captive screws
(2)
that secure the fan/heat sink assembly to the system board.
4.
Remove the fan/heat sink assembly
(3)
.
NOTE:
Due to the adhesive quality of the thermal
material located between the fan/heat sink
assembly and system board components, it may be necessary to move the fan/heat sink assembly
from side to side to detach it.
NOTE:
The thermal
material must be thoroughly cleaned from the surfaces of the fan/heat sink
assembly and the
processor each time the fan/heat sink assembly is removed.
●
Thermal paste is used on the
processor
(1)
and the heat sink section
(2)
that services it
●
A thermal pad is used on the PCH chip
(3)
and the heat sink section
(4)
that services it
●
Thermal paste is used on the graphics subsystem chip
(5)
and the heat sink section
(6)
that
services it
Replacement thermal
material is included with all fan/heat sink assembly, system board, and
processor spare part kits.
Component replacement procedures
73