HP ProBook 4320t, Maintenance And Service Manual

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Processor
NOTE: The processor spare part kit includes replacement thermal material.
Description Spare part number
Processor , Intel Arrandale P4500 1.8-GHz, (includes replacement thermal material) 611699-001
Before removing the processor, 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 36 ).
5. Remove the following components:
a. Switch cover (see Switch cover on page 37 )
b. Keyboard (see Keyboard on page 39 )
c. DVD-ROM drive (see DVD-ROM drive on page 43 )
d. Speakers (see Speakers on page 46 )
e. Palm rest (see Palm rest on page 48 )
f. Top cover (see Top cover on page 67 )
g. Heat shield, heat sink, and fan (see Heat sink and fan on page 57 )
Remove the processor:
1. Position the computer right-side up with the front toward you.
2. Use a flat-bladed screwdriver to turn the processor locking screw (1) one-half turn
counterclockwise until you hear a click.
60 Chapter 4 Removal and replacement procedures