Asus P8H61-M2 TPM SI User Manual page 23

2. CPU and Chassis fan connectors (4-pin CPU_FAN, 3-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.
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!
P8H61-M2/TPM/SI
P8H61-M2/TPM/SI fan connectors
3. Serial port connectors (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 module is purchased separately.
P8H61-M2/TPM/SI
P8H61-M2/TPM/SI Serial port (COM1) connector
Chapter 1: Product introduction
CPU_FAN
CHA_FAN
GND
+12V
Rotation
COM1
PIN 1
1-11