Compaq Presario CQ40-400 Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 84

system board and installed on the replacement system board

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6. Release the system board by sliding it to the right at an angle (3) until the connectors on the left side of the system board disengage from the base enclosure, and then remove the system board. 7. If it is necessary to replace the modem module cable, remove the RJ-11 connector (1) from the clip built into the base enclosure. 8. Remove the modem module cable (2) from the routing channel built into the base enclosure. The modem module cable is available using spare part number 494981-001. When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ● Heat sink (see Heat sink on page 77) ● Processor (see Processor on page 79) Reverse this procedure to install the system board. 76 Chapter 4 Removal and replacement procedures

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6.
Release the system board by sliding it to the right at an angle
(3)
until the connectors on the left
side of the system board disengage from the base enclosure, and then remove the system board.
7.
If it is necessary to replace the modem module cable, remove the RJ-11 connector
(1)
from the
clip built into the base enclosure.
8.
Remove the modem module cable
(2)
from the routing channel built into the base enclosure. The
modem module cable is available using spare part number 494981-001.
When replacing the system board, be sure that the following components are removed from the defective
system board and installed on the replacement system board:
●
Heat sink (see
Heat sink
on page
77
)
●
Processor (see
Processor
on page
79
)
Reverse this procedure to install the system board.
76
Chapter 4
Removal and replacement procedures