ASUS B85M-GAMER
1-15
2.
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.
B85M-GAMER
B85M-GAMER Serial port connector
PIN 1
COM
RXD DTR DSR CTS
DCD TXD GND RTS
RI
1.7.2
Internal connectors
1.
CPU and chassis fan connectors (4-pin CPU_FAN, 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.
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 1 A (12 W) fan power.
CPU_FAN
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
CHA_FAN
GND
CHA FAN PWR
CHA FAN IN
+5V
B85M-GAMER
B85M-GAMER Fan connectors
Only the 4-pin CPU fan support the ASUS Fan Xpert feature.
The COM module is purchased separately.