AXIOMTEK EP850 Series, User Manual

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EP850 All-In-One EPIC Board User’s Manual
Jumpers and Connectors
18
2.4.4 Flat Panel Bezel Connector (CN3)
„ Power LED
This 3-pin connector named as Pin 1 and Pin 5 connect the system
power LED indicator to such a switch on the case. Pin 1 is assigned
as +, and Pin 5 as -. The Power LED lights up when the system is
powered ON.
„ External Speaker and Internal Buzzer Connector
Pin 2, 4, 6 and 8 can be connected to the case-mounted speaker
unit or internal buzzer. While connecting the CPU card to an
internal buzzer, please short pins 2-4; while connecting to an
external speaker, you need to set pins 2-4 to Open and connect the
speaker cable to pin 8 (+) and pin 2 (-).
„ ATX Power On/Off Button
This 2-pin connector named as Pin 9 and 10 connect the front
panel’s ATX power button to the CPU card, which allows users to
control ATX power supply to be power on/off.
„ System Reset Switch
Pin 11 and 12 can be connected to the case-mounted reset switch
that reboots your computer instead of turning OFF the power switch.
It is a better way to reboot your system for a longer life of the
system’s power supply.
„ HDD Activity LED
This connection is linked to hard drive activity LED on the control
panel. LED flashes when HDD is being accessed. Pin 13 and 14
connect the hard disk drive to the front panel HDD LED, Pin 13
assigned as -, and Pin 14 as +.