Asus A7V-E Motherboard DIY Troubleshooting Guide - Page 33

Pin Cpu_fan, Ps_fan, Chass_fan

Page 33 highlights

3. HARDWARE SETUP 15) CPU, Power Supply, Chassis Fan Connectors (3-pin CPU_FAN, PS_FAN, CHASS_FAN) These connectors support cooling fans of 350mA (4.2 Watts) or less. Orientate the fans so that the heat sink fins allow airflow to go across the onboard heat sink(s) instead of the expansion slots. Depending on the fan manufacturer, the wiring and plug may be different. The red wire should be positive, while the black should be ground. Connect the fan's plug to the board taking into consideration the polarity of the connector. NOTE: The "Rotation" signal is to be used only by a specially designed fan with rotation signal. The Rotations per Minute (RPM) can be monitored using ASUS PC Probe (see 6. SOFTWARE REFERENCE). WARNING! The CPU and/or motherboard will overheat if there is no airflow across the CPU and onboard heatsinks. Damage may occur to the motherboard and/or the CPU fan if these pins are incorrectly used. These are not jumpers, do not place jumper caps over these pins. 01 01 CPU_FAN GND +12V PS_FAN Rotation ® A7V-E A7V-E 12-Volt Cooling Fan Power Rotation +12V GND CHASS_FAN GND +12V Rotation 3. H/W SETUP Connectors ASUS A7V-E User's Manual 33

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ASUS A7V-E User’s Manual
33
3. HARDWARE SETUP
Connectors
3. H/W SETUP
15) CPU, Power Supply, Chassis Fan Connectors
(3-pin CPU_FAN, PS_FAN, CHASS_FAN)
These connectors support cooling fans of 350mA (4.2 Watts) or less. Orientate
the fans so that the heat sink fins allow airflow to go across the onboard heat
sink(s) instead of the expansion slots. Depending on the fan manufacturer, the
wiring and plug may be different. The red wire should be positive, while the
black should be ground. Connect the fan’s plug to the board taking into consid-
eration the polarity of the connector.
NOTE:
The “Rotation” signal is to be used only by a specially designed fan with
rotation signal. The Rotations per Minute (RPM) can be monitored using ASUS PC
Probe (see
6. SOFTWARE REFERENCE
).
WARNING!
The CPU and/or motherboard will overheat if there is no airflow
across the CPU and onboard heatsinks.
Damage may occur to the motherboard
and/or the CPU fan if these pins are incorrectly used.
These are not jumpers,
do not place jumper caps over these pins.
0
1
0
1
A7V-E
A7V-E 12-Volt Cooling Fan Power
CHASS_FAN
CPU_FAN
GND
Rotation
+12V
GND
Rotation
+12V
PS_FAN
GND
Rotation
+12V