Asus F2A55-M/CSM User Manual page 39

5. Serial port connector (10-1 pin COM)
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.
F2A55-M
F2A55-M Serial port (COM) connector
The COM module is purchased separately.
6. CPU and chassis fan connectors (3-pin PWR FAN, 4-pin CPU_FAN, and 4-pin
CHA_FAN)
Connect the fan cables to the fan connectors on the motherboard, ensuring that the
black wire of each cable matches the ground pin of the connector.
F2A55-M
F2A55-M Fan connectors
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!
• The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.
• Only the 4-pin CPU fan & CHA fan support ASUS FanXpert feature.
ASUS F2A55-M
COM
PIN 1
PWR_FAN CPU_FAN
CHA_FAN
GND
CHA FAN PWR
CHA FAN IN
CHA FAN DC mode
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