Asus P7H55-M - Page 41

ASUS P7H55-M/USB3 1-28
4. Serial port connector (10-1 pin COM1)
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.
The COM module is purchased separately.
P
7
H
5
5
-
M
/
US
B
3
P7H55-M/USB3 Serial port (COM1) connector
PIN 1
COM1
Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside the
system may damage the motherboard components. These are not jumpers! Do not place
jumper caps on the fan connectors!
5. CPU and chassis fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1)
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.
• Only the 4-pin CPU fan supports the ASUS Q-FAN feature.
• The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.
P
7
H
5
5
-
M
/
US
B
3
P7H55-M/USB3 fan connectors
GND
+12V
Rotation
CHA_FAN
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND