Matrox Electronic Systems 4SIGHT-M - Manual (Page 51)

Custom fan 51
Custom fan
You can use any fan that provides at least 18 cfm (0.5 m
3
/min.) of air flow through
the CPU heat sink. Due to the heat sink’s convoluted fins, the fan must be placed
on one side of the heat sink, as illustrated in the diagram below. This will ensure
proper airflow through the fins, resulting in an efficient removal of accumulated
heat.
The following are the specifications for each pin on the fan connector:
Pin Power supply (V) Max. voltage (V) Min. voltage (V) Max. current (A)
1 GROUND
2 7-12 12 7 0.5
3 Tachometer, four pulses per rotation.
Front Panel
System fan connector
Place fan on either side of the motherboard
heat sink
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