Asus M3A78-EMH HDMI - Manual (Page 47)

ASUS M3A78-EMH HDMI 1-35
5.. CPU.and.Chassis.Fan.connectors.
(4-pin CPU_FAN, 3-pin CHA_FAN)
The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or
a total of 1A~2.22A (26.64W 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.
Only CPU Fan supports Q-Fan.
M3A78-EMH HDMI
M3A78-EMH HDMI Fan Connectors
CPU_FAN
GN
D
CPU
FA
N PW
R
CPU
FA
N IN
CPU
FA
N PW
M
CHA_FAN
GN
D
Rotatio
n
+12V
6.. Serial.port.connector.(10-1.pin.COM1)
The connector is for a serial (COM) port. Connect the serial port module
cable to the connector, then install the module to a slot opening at the back of
the system chassis.
The serial port bracket (COM1) is purchased separately.
M3A78-EMH HDMI COM Port Connector
PIN1
COM1
M3A78-EMH HDMI