HP EliteBook 650 Maintenance and Service Guide - Page 67

Heat sink, Disconnect the battery cable from the system board see

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2. Remove the Phillips M2.0 × 2.5 screw (2) that secures the fingerprint reader bracket to the computer, and then remove the bracket (3). 3. Remove the fingerprint reader board from the computer (4). Reverse this procedure to install the fingerprint reader board. Heat sink To remove the heat sink, use these procedures and illustrations. Table 6-9 Heat sink descriptions and part numbers Description Heat sink for use in models with 15 W processors Heat sink for use in models with 28 W processors Spare part number M47406-001 N15764-001 Before removing the heat sink, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 41). 2. Remove the bottom cover (see Bottom cover on page 41). 3. Disconnect the battery cable from the system board (see Battery on page 51). Remove the heat sink: 1. In the order indicated on the heat sink, loosen the four captive Phillips screws (1) that secure the heat sink to the computer. Heat sink 59

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2.
Remove the Phillips M2.0 × 2.5 screw
(2)
that secures the fingerprint reader bracket to the computer, and
then remove the bracket
(3)
.
3.
Remove the fingerprint reader board from the computer
(4)
.
Reverse this procedure to install the fingerprint reader board.
Heat sink
To remove the heat sink, use these procedures and illustrations.
Table 6-9
Heat sink descriptions and part numbers
Description
Spare part number
Heat sink for use in models with 15 W processors
M47406-001
Heat sink for use in models with 28 W processors
N15764-001
Before removing the heat sink, follow these steps:
1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
41
).
2.
Remove the bottom cover (see
Bottom cover
on page
41
).
3.
Disconnect the battery cable from the system board (see
Battery
on page
51
).
Remove the heat sink:
1.
In the order indicated on the heat sink, loosen the four captive Phillips screws
(1)
that secure the heat
sink to the computer.
Heat sink
59