Asus Motherboard A7V8X - Manual (Page 48)

2-22 Chapter 2: Hardware information
10. Power supply thermal connector (2-pin TRPWR1)
If your power supply has a thermal monitoring feature, connect its
thermal sensor cable to this connector.
9. CPU, Chassis, and Power Fan Connectors
(3-pin CPU_FAN1, PWR_FAN1, CHA_FAN1)
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!
A7V8X ®
A7V8X 12-Volt Fan Connectors
CPU_FAN1
PWR_FAN1
CHA_FAN1
GND Rotation +12V
GND
Rotation
+12V
GND
Rotation
+12V
A7V8X ®
A7V8X Thermal Sensor Connector
TRPWR1
Power Supply
Thermal Sensor