5
CN3 : External Switches and Indicators
PIN
DESCRIPTION PIN DESCRIPTION
1 +5V
2 Speaker
+
Power LED
3 GND
4 N/C
5 BUTTON
PIN1 6 N/C
ATX POWER
BUTTON
7
BUTTON PIN2 8
Speaker -
Speaker
9
HDD LED +
10 Reset PIN1
HDD LED
11 HDD LED -
12 Reset PIN2
Reset
Button
KB1 : 5-pin Header
Keyboard Connector
PIN DESCRIPTION
1 KEYBOARD
CLOCK
2 KEYBOARD
DATA
3 N/C
4 GROUND
5 +5V
FAN1
:
Fan Connector
PIN DESCRIPTION
1 GROUND
2 +12V
3 Rotation
Signal
CDIN1 : CD-IN
PIN DESCRIPTION
1 CD
LEFT
SIGNAL
2
GROUND
3
GROUND
4
CD RIGHT SIGNAL
USB2&USB3: USB Port Connector
PIN DESCRIPTION
PIN DESCRIPTION
1 VCC 2
GROUND
3 DATA0- 4 DATA1+
5 DATA0+ 6 DATA1-
7 GROUND 8 VCC
CN4 : Backplane to CPU
board Connector
PIN
DESCRIPTION
1 GND
2 ATX-ON
3 5VSB
IR1: IrDA connector
PIN
DESCRIPTION
1 VCC
2 NC
3 IR-RX
4 Ground
5 IR-TX
6 NC
