HP Pavilion g7-2200 HP Pavilion g7 Notebook PC Maintenance and Service Guide - Page 80

Fan and heat sink, Remove the system board see

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Fan and heat sink NOTE: The fan and heat sink spare part kits include replacement thermal material. Description Heat sink for use only with computer models equipped with switchable discrete video memory Heat sink for use only with computer models equipped with UMA video memory Fan Spare part number 683028-001 683027-001 680551-001 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. Before removing the fan and heat sink, follow these steps: 1. Shut down the computer. 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 33). 5. Remove the service door (see Service door on page 34). 6. Remove the optical drive (see Optical drive on page 35). 7. Remove the hard drive (see Hard drive on page 38). 8. Remove the keyboard (see Keyboard on page 45). 9. Remove the top cover (see Top cover on page 48). 10. Remove the system board (see System board on page 68). Remove the fan and heat sink: 1. Turn the system board upside down, with the front toward you. 2. Disconnect the fan cable (1) from the system board. CAUTION: To prevent damage to heat sinks and/or processors, loosen/tighten captive screws in sequence as numerically labeled. NOTE: The heat sink and fan appearance and the number of screws may be different from the heat sink and fan pictured. 72 Chapter 4 Removal and replacement procedures ENWW

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Fan and heat sink
NOTE:
The fan and heat sink spare part kits include replacement thermal material.
Description
Spare part number
Heat sink for use only with computer models equipped with switchable discrete video memory
683028-001
Heat sink for use only with computer models equipped with UMA video memory
683027-001
Fan
680551-001
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.
Before removing the fan and heat sink, follow these steps:
1.
Shut down the computer.
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
33
).
5.
Remove the service door (see
Service door
on page
34
).
6.
Remove the optical drive (see
Optical drive
on page
35
).
7.
Remove the hard drive (see
Hard drive
on page
38
).
8.
Remove the keyboard (see
Keyboard
on page
45
).
9.
Remove the top cover (see
Top cover
on page
48
).
10.
Remove the system board (see
System board
on page
68
).
Remove the fan and heat sink:
1.
Turn the system board upside down, with the front toward you.
2.
Disconnect the fan cable
(1)
from the system board.
CAUTION:
To prevent damage to heat sinks and/or processors, loosen/tighten captive screws
in sequence as numerically labeled.
NOTE:
The heat sink and fan appearance and the number of screws may be different from the
heat sink and fan pictured.
72
Chapter 4
Removal and replacement procedures
ENWW