SBC86620 AMD
®
Geode GX3 Mini ITX Board User’s Manual
Jumpers and Connectors
15
2.4.1 ATX Power Connector: CN1
Pin
Signal
Pin
Signal
1
3.3V
11
3.3V
2
3.3V
12
-12V
3
GND
13
GND
4
5V
14
PS_ON
5
GND
15
GND
6
5V
16
GND
7
GND
17
GND
8
PW_OK
18
-5V
9
5V_SB
19
5V
10
12V
20
5V
1
2
3
4
5
7
8
9
10
6
11
12
13
14
15
16
17
18
19
20
2.4.2 Flat Panel Bezel Connector:CN2
Power LED
This 3-pin connector, designated at
Pins 1
and
5
of
CN2
,
connects the system power LED indicator to its respective switch
on the case.
Pin 1
is +, and
pin 5
is assigned as -. The Power
LED lights up when the system is powered ON.
External Speaker and Internal Buzzer Connector
Pins 2, 4, 6,
and
8 of CN2
connect to the case-mounted speaker
unit or internal buzzer.
Short pins 2-4
when connecting the CPU
card to an internal buzzer. When connecting an external speaker,
set these jumpers to
Open
and install the speaker cable on
pin 8
(+) and
pin 2
(-).
ATX Power On/Off Button
This 2-pin connector, designated at
Pins 9
&
10
of
CN2
, connects
the ATX power button of the front panel to the
SBC86620
CPU
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