Owner's manual

1-25 Chapter 1: Product introduction
7. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. Connect
the S/PDIF Out module cable to this connector, then install the module to a slot
opening at the back of the system chassis.
The S/PDIF module is purchased separately.
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!
6. 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 fan connectors
GND
+12V
Rotation
CHA_FAN1
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
SPDIF_OUT
+5V SPDIFOUT GND
P7H55-M Digital audio connector