Asus M2N-LR User Manual - Page 43

CPU, Front and Rear fan connectors 4-pin CPU_FAN1/2, 3-pin FRONT, FAN1/2, Rear_FAN1/2, Backplane - cpu support

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4. CPU, Front and Rear fan connectors (4-pin CPU_FAN1/2, 3-pin FRONT_ FAN1/2, Rear_FAN1/2) The fan connectors support cooling fans of 350mA~2000mA (24 W max.) or a total of 1A~3.48A (41.76 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. Lack of sufficient air flow inside the system may damage the motherboard components. These are not jumpers! DO NOT place jumper caps on the fan connectors! • All fan features the ASUS Smart Fan technology. M2N-LR/SATA ® CPU_FAN1 FANOUT4 FANPWR2 GND CPU_FAN2 GND FANPWR2 FANOUT4 FRNT_FAN1 GND FANPWR2 FANOUT4 FRNT_FAN2 GND FANPWR2 FANOUT4 REAR_FAN2 REAR_FAN1 M2N-LR/SATA Fan Connectors GND FANPWR2 FANOUT4 GND FANPWR2 FANOUT4 5. Backplane SMBus connector (6-1 pin BPSMB1) This connector allows you to connect SMBus (System Management Bus) devices. Devices communicate with an SMBus host or other SMBus devices using the SMBus interface. M2N-LR/SATA ® BPSMB1 1 FAN_PWM I2C_CLK# GND I2C_DATA# +5VSB M2N-LR/SATA SMBus Connector 2-24 Chapter 2: Hardware information

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2-2³
Chapter 2: Hardware information
4.
CPU, Front and Rear fan connectors (4-pin CPU_FAN1/2, 3-pin FRONT_
FAN1/2, Rear_FAN1/2)
The fan connectors support cooling fans of 350mA~2000mA (24 W max.) or
a total of 1A~3.48A (41.76 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. Lack
of sufficient air flow inside the system may damage the motherboard
components. These are not jumpers! DO NOT place jumper caps on the
fan connectors!
•
All fan features the ASUS Smart Fan technology.
M2N-LR/SATA
M2N-LR/SATA Fan Connectors
GND
FANPWR2
FANOUT4
CPU_FAN1
GND
FANPWR2
FANOUT4
CPU_FAN2
GND
FANPWR2
FANOUT4
FRNT_FAN1
GND
FANPWR2
FANOUT4
FRNT_FAN2
GND
FANPWR2
FANOUT4
REAR_FAN2
GND
FANPWR2
FANOUT4
REAR_FAN1
5.
Backplane SMBus connector (6-1 pin BPSMB1)
This connector allows you to connect SMBus (System Management Bus)
devices. Devices communicate with an SMBus host or other SMBus devices
using the SMBus interface.
M2N-LR/SATA
M2N-LR/SATA SMBus Connector
BPSMB1
1
I2C_CLK#
GND
I2C_DATA#
+5VSB
FAN_PWM