HP ProBook 4446s HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 55

Fan, Remove the fan

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Fan Description Fan Spare part number 683651-001 Before removing the fan, 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 following components: a. Battery (see Battery on page 33) b. Bottom door (see Bottom door on page 34). c. Hard drive (see Hard drive on page 38) d. Optical drive (see Optical drive on page 35) e. Memory (see Memory modules on page 40) f. WLAN module (see WLAN/Bluetooth combo card on page 42) g. Keyboard (see Keyboard on page 44) h. Metal heat shield (see Metal heat shield on page 46) Remove the fan: 1. Position the computer upside-down with the fan on the right. 2. Disconnect the fan cable (1) from the system board that secure the fan to the top cover. 3. Remove the two Phillips screws (2) that secure the fan to the top cover. Component replacement procedures 47

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Fan
Description
Spare part number
Fan
683651-001
Before removing the fan, 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 following components:
a.
Battery (see
Battery
on page
33
)
b.
Bottom door (see
Bottom door
on page
34
).
c.
Hard drive (see
Hard drive
on page
38
)
d.
Optical drive (see
Optical drive
on page
35
)
e.
Memory (see
Memory modules
on page
40
)
f.
WLAN module (see
WLAN/Bluetooth combo card
on page
42
)
g.
Keyboard (see
Keyboard
on page
44
)
h.
Metal heat shield (see
Metal heat shield
on page
46
)
Remove the fan:
1.
Position the computer upside-down with the fan on the right.
2.
Disconnect the fan cable
(1)
from the system board that secure the fan to the top cover.
3.
Remove the two Phillips screws
(2)
that secure the fan to the top cover.
Component replacement procedures
47