HP ProBook 4446s HP ProBook 4445s Notebook PC HP ProBook 4446s Notebook PC - M - Page 54

Metal heat shield, Position the computer upside-down with the battery bay away from you.

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Metal heat shield Before removing the metal heat shield, 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 33). 5. Remove the optical drive (see Optical drive on page 35) 6. Remove the bottom door (see Bottom door on page 34). 7. Remove the hard drive (see Hard drive on page 38). 8. Remove the memory (see Memory modules on page 40). 9. Remove the keyboard (see Keyboard on page 44). Remove the Metal heat shield: 1. Position the computer upside-down with the battery bay away from you. 2. Remove the three Phillips screws (1) that secure the shield. 3. Rotate the shield up (2), then lift the shield out of the enclosure (3). Reverse this procedure to install the metal heat shield. 46 Chapter 4 Removal and replacement procedures

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Metal heat shield
Before removing the metal heat shield, 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
33
).
5.
Remove the optical drive (see
Optical drive
on page
35
)
6.
Remove the bottom door (see
Bottom door
on page
34
).
7.
Remove the hard drive (see
Hard drive
on page
38
).
8.
Remove the memory (see
Memory modules
on page
40
).
9.
Remove the keyboard (see
Keyboard
on page
44
).
Remove the Metal heat shield:
1.
Position the computer upside-down with the battery bay away from you.
2.
Remove the three Phillips screws
(1)
that secure the shield.
3.
Rotate the shield up
(2)
, then lift the shield out of the enclosure
(3)
.
Reverse this procedure to install the metal heat shield.
46
Chapter 4
Removal and replacement procedures