Owner's manual

10. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) ports.
SPDIF_OUT
+5V SPDIFOUT GND
M3N78-AM
M3N78-AM Digital audio connector
The S/PDIF module is purchased separately.
11. CPU Fan connectors (4 pin CPU_FAN)
The fan connector supports 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, 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. 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.
Only the CPU FAN supports ASUS Q-Fan.
CPU_FAN
GND CPU FAN PWR CPU FAN IN CPU FAN PWM
M3N78-AM
M3N78-AM CPU fan connector
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