HP Presario CQ45-300 Compaq Presario CQ45 Notebook PC - Maintenance and Servic - Page 97

Turn the processor locking screw, one-half turn counterclockwise until you hear a click.

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Before removing the processor, 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 43). 5. Remove the following components: a. Hard drive (see Hard drive on page 46) b. Optical drive (see Optical drive on page 44) c. Keyboard (see Keyboard on page 56) d. Switch cover (see Switch cover on page 58) e. Speaker assembly (see Speaker assembly on page 60) f. Display assembly (see Display assembly on page 62) g. Top cover (see Top cover on page 69) h. System board (see System board on page 82) i. Fan/heat sink assembly (see Fan/heat sink assembly on page 85) Remove the processor: 1. Turn the processor locking screw (1) one-half turn counterclockwise until you hear a click. 2. Lift the processor (2) straight up and remove it. NOTE: The gold triangle (3) on the processor must be aligned with the triangle icon (4) embossed on the processor socket when you install the processor. Reverse this procedure to install the processor. Component replacement procedures 89

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Before removing the processor, 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
43
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
46
)
b.
Optical drive (see
Optical drive
on page
44
)
c.
Keyboard (see
Keyboard
on page
56
)
d.
Switch cover (see
Switch cover
on page
58
)
e.
Speaker assembly (see
Speaker assembly
on page
60
)
f.
Display assembly (see
Display assembly
on page
62
)
g.
Top cover (see
Top cover
on page
69
)
h.
System board (see
System board
on page
82
)
i.
Fan/heat sink assembly (see
Fan/heat sink assembly
on page
85
)
Remove the processor:
1.
Turn the processor locking screw
(1)
one-half turn counterclockwise until you hear a click.
2.
Lift the processor
(2)
straight up and remove it.
NOTE:
The gold triangle
(3)
on the processor must be aligned with the triangle icon
(4)
embossed
on the processor socket when you install the processor.
Reverse this procedure to install the processor.
Component replacement procedures
89