Asus P4SE User's Guide download pdf (Page 27)

ASUS P4SE Motherboard

1-17

6. CPU, Chassis, and Power Fan Connectors

(3-pin CPUFAN1, CHASFAN1, PWRFAN1)

The three fan connectors support cooling fans of 350mA (4.2 Watts)

or a total of 1A (12W) at +12V. Orient the fans so that the heat sink

fins allow air flow to go across the onboard heat sinks instead of the

expansion slots. The fan wiring and plug may vary depending on the

fan manufacturer. Connect the fan cable to the connector matching

the black wire to the ground pin.

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!

P4SE

P4SE 12-Volt Fan Connectors

CPUFAN1

PWRFAN1

CHASFAN

GND

Rotation

+12V

GND

Rotation

+12V

GND

Rotation

+12V

7. SMBus connector (6-1 pin SMB)

This connector allows you to connect SMBus (System Management

Bus) devices. Devices communicate with an SMBus host and/or other

SMBus devices using the SMBus interface. SMBus is a specific

implementation of an I

C bus, a multi-device bus that allows multiple

chips to connect to the same bus and enable each one to act as a

master by initiating data transfer.

P4SE

P4SE SMBus Connector

SMB

SMBCLK

Ground

SMBDATA

+3V

FLOATING

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Asus P4SE User's Guide Page 27

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