AXIOMTEK EP820 Series, User Manual

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EP820 All-In-One EPIC Board User’s Manual
Jumpers and Connectors
20
„ 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, not turns 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 +.
2.4.7 Floppy Disk Controller (Optional): CN18
The EP820 Series provides a 26-pin FCC Z.I.F. type connector CN18
for support of floppy drives. The supported types of FDD drives are 3.5"
720KB or 1.44MB/2.88MB.
Please refer to next page for the pin assignment table.