Asus P7H55-M/USB3 - Manual (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.
P7H55-M/USB3
P7H55-M/USB3 Serial port (COM1) connector
PIN 1
COM1
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!
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.
P7H55-M/USB3
P7H55-M/USB3 fan connectors
GND
+12V
Rotation
CHA_FAN
CPU_FAN
CPU
FA
N PW
M
CPU
FA
N IN
CPU
FA
N PWR
GND