Acer Altos G520 Service Manual page 97

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3-Pin Fan Headers Pin-Out (J51,J52,J, J1, J45, J48)
Pin
1
Ground
2
Fan Power
3
Fan Tach
6-Pin Fan headers Pin-Oout (J44, J46)
Pin
1
Ground
2
Fan Power
3
Fan Tach
4
Fan PWM
5
N/C
6
N/C
Intrusion Cable Connector (J19)
Pin
1
INTRUDER_N
2
GND
IDE Flash Module Power Connector (J42)
Pin
1
GND
2
+5V
Chapter 5
Signal Name
Type
Power
Power
Out
Signal Name
Type
Power
Power
Out
Out
Signal Name
Signal Name
Description
GROUND is the power supply ground
Fan Power
FAN_TACH signal is connected to the Super IO to monitor
the FAN speed
Description
GROUND is the power supply ground
Fan Power
FAN_TACH signal is connected to the Super IO to monitor
the FAN speed.
Fan speed control
88

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