Asus K8N8X-LA User Manual page 14

5. CPU and System Fan Connectors (3-pin CPU_FAN, CHA_FAN)
The fan connectors support 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, making sure 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. Lack of sufficient
air flow within the system may damage the motherboard components. These
are not jumpers! DO NOT place jumper caps on the fan connectors!
K8N8X-LA
K8N8X-LA 12-Volt Cooling Fan Power
6. Internal audio connectors (4-pin CD_IN, AUX_IN)
These connectors allow you to receive stereo audio input from sound sources
such as a CD-ROM, TV tuner, or MPEG card.
K8N8X-LA
K8N8X-LA Internal Audio Connectors
10 ASUS K8N8X-LA (Dom) Motherboard
CHA_FAN CPU_FAN
GND
+12V
Rotation
AUX_IN (White) CD_IN (Black)