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Asus P5K3 Premium/WiFi-AP User Manual

Page 52

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2-26

Chapter 2: Hardware information

6. CPU, chassis and power fan connectors

(4-pin CPU_FAN, 3-pin CHA_FAN1-4, 3-pin PWR_FAN)
The fan connectors support cooling fans of 350 mA ~ 2000 mA (24 W max.)

or a total of 1 A ~ 7 A (84 W 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. Insufficient air

flow 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 and CHA-FAN 1-4 connectors support the

ASUS Q-Fan 2 feature.

• If you install two VGA cards, we recommend that you plug the rear

chassis fan cable to the motherboard connector labled CHA_FAN1

or CHA_FAN2 for better themal environment.

Never connect a USB cable to the IEEE 1394a connector. Doing so will damage

the motherboard!

You can attach a FireWire/1394 cable to this connector if your chassis suppots

the front panel IEEE1394 port. Connect the 1394 cable to ASUS Q-Connector

(1394, red) first, and then install the Q-Connector (1394) to the 1394 connector

onboard.

P5K3 PREMIUM

®

P5K3 PREMIUM Fan connectors

CPU_FAN

CHA_FAN1

GND

Rotation

+12V

GND CPU F

AN PWR

CPU F

AN IN

CPU F

AN PWM

CHA_FAN3 CHA_FAN4

GND

Rotation +12

V

CHA_FAN2

GND

Rotation

+12V

PWR_FAN

GND

Rotation

+12V

GND

Rotation

+12V