Asus A7S-VM A7S-VM User Manual - Page 31

CPU Fan, Power Supply Fan, and Chassis Fan Connectors

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3. HARDWARE SETUP 6) CPU Fan, Power Supply Fan, and Chassis Fan Connectors (3-pin CPU_FAN/PWR_FAN/CHA_FAN) The three fan connectors support cooling fans of 350mA (4.2 Watts) or less. Orient the fans so that the heat sink fins allow airflow to go across the onboard heat sink(s) instead of the expansion slots. The fan wiring and plug may vary depending on the fan manufacturer. The red wire should be positive while the black should be ground. Connect the fan plug to the board taking into consideration the polarity of the connector. NOTE: Use the "Rotation" signal only with a specially designed fan with a 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. CPU_FAN GND +12V Rotation GND +12V Rotation A7S-VM A7S-VM 12-Volt Cooling Fan Power GND +12V Rotation PWR_FAN CHASIS_FAN 3. H/W SETUP Connectors ASUS A7S-VM User's Manual 31

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ASUS A7S-VM User’s Manual
31
3. HARDWARE SETUP
Connectors
3. H/W SETUP
A7S-VM 12-Volt Cooling Fan Power
CPU_FAN
CHASIS_FAN
PWR_FAN
GND
Rotation
+12V
GND
Rotation
+12V
GND
Rotation
+12V
A7S-VM
6)
CPU Fan, Power Supply Fan, and Chassis Fan Connectors
(3-pin CPU_FAN/PWR_FAN/CHA_FAN)
The three fan connectors support cooling fans of 350mA (4.2 Watts) or less.
Orient the fans so that the heat sink fins allow airflow to go across the onboard
heat sink(s) instead of the expansion slots.
The fan wiring and plug may vary
depending on the fan manufacturer. The red wire should be positive while the
black should be ground. Connect the fan plug to the board taking into
consideration the polarity of the connector.
NOTE:
Use the “Rotation” signal only with a specially designed fan with a 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.