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Working Inside the System 39
Fans
For cooling and airflow, the system contains three removable chassis fans to cool the boards and
removable media drives. The integrated power supply fan provides more cooling and airflow.
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NOTE
The fan has two connectors on its cable. One is labeled “N440BX” and
should only be connected a system fan connector on the Intel N440BX
Server Board. The other connector is label “ATX” and can be connected to
any ATX compliant board.
Table 2. Fan Cable Connector Pinout
Pin ATX signal N440BX Signal Wire Color
1 Ground Ground Black
2 +12V SPEED Yellow
3 Speed +12 V red
Removing the Front Fan
1. Observe the safety and ESD precautions at the beginning this chapter.
2. Remove the side cover.
3. Disconnect the fan power cable connector from the fan header on the server board.
4. Remove the screw holding the fan bracket to the chassis.
5. Pull the fan bracket out of the chassis.
OM07050
A
B
Figure 24. Removing the Fan Bracket
A. Fan power cable
B. Notched metal tabs