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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: System Fan Header
SYS_FAN2: NorthBridge Fan Header
Note:
CPU_FAN1, SYS_FAN1/2 support 4-pin and 3-pin head connectors. 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.
1
4
Pin
1
2
3
4
Pin
S YS _FA N2
1
2
3
1
1
3
S YS _FA N1
TA55A / A55A
Assignment
Ground
+12V
FAN RPM rate
sense
Smart Fan
Control (By Fan)
Assignment
Ground
+12V
FAN RPM
rate sense
7
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