Asus DSBF-DM SAS User Manual page 58

11. CPU and system fan connectors (4-pin CPU_FAN1/2, REAR_FAN1/2,
FRNT_FAN1/2/3/4)
The fan connectors support cooling fans of 350 mA ~ 740 mA (8.88 W max.)
or a total of 3.15 A ~ 6.66 A (53.28 W max.) at +12V. Connect the fan cables
to the fan connectors on the motherboard, making sure that the black wire of
each cable matches the ground pin of the connector.
DO NOT forget to connect the fan cables to the fan connectors. Insufficient air
flow inside the system may damage the motherboard components. These are
not jumpers! DO NOT place jumper caps on the fan connectors!
DSBF-DM Series Fan connectors
12. Serial port connector (10-1 pin COM2)
This connector is for a serial (COM) port. Connect the serial port module
cable to this connector, then install the module to a slot opening at the back
of the system chassis.
DSBF-DM Series Serial port connectors
The serial port module is purchased separately.
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CPU_FAN1
CPU_FAN1
PWM Control
FAN Speed
REAR_FAN1
FAN Power
REAR_FAN2
GND
CPU_FAN2
REAR_FAN1
FRNT_FAN1
FRNT_FAN2
FRNT_FAN3
FRNT_FAN4
FRNT_FAN1 FRNT_FAN2 FRNT_FAN3 FRNT_FAN4
COM2
PIN 1
Chapter 2: Hardware information
CPU_FAN2
REAR_FAN2
PWM Control
FAN Speed
FAN Power
GND