User Guide

Hardware Installation

2-9

2.3 Connectors

2.3.1 Power Cable

The ATX power supply uses a 20-pin connector as shown below. Make sure

you plug in the cable in the right direction.

Caution: Make sure that the power supply is

off before connecting or disconnecting the

power cable.

+5V

5V SB

3.3V

PWR2

2.3.2 Fan

The CPU fan connectors are marked as CPUFAN1 and CPUFAN2 on the

system board. You can plug the CPU fan cable to both the 2-pin fan

connector CPUFAN2 and the 3-pin fan connector CPUFAN1. And FAN

connector can be used to connect housing fan. Note that only CPUFAN1 and

FAN support the fan monitoring function, because 3-pin fan has an extra pin

called SENSE, which periodically sends fan signal out.

+12V

SENSE

GND

CPUFAN1 & FAN

+12V

GND

CPUFAN2