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2.2
FAN H
EADERS
These fan headers support cooling-fans built in the computer. The fan
cable and connector may be different according to the fan manufacturer.
Connect the fan cable to the connector while matching the black wire to
pin#1.
CPU_FAN1: CPU Fan Header
SYS_FAN1/SYS_FAN2: System Fan Headers
Note:
The SYS_FAN1/SYS_FAN2 support 3-pin head connectors; the CPU_FAN1 supports
4-pin head connector. When connecting with wires onto connectors, please note that the
red wire is the positive and should be connected to pin#2, and the black wire is Ground
and should be connected to GND.
Pin
4
1
1
2
3
4
Pin
1
2
SYS_FAN2
3
1
3
SYS_FAN1
TP5 5
Assignment
Ground
+12V
FAN RPM rate
sense
Smart Fan
Control
Assignment
Ground
+12V
FAN RPM rate
sense
7
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