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22) SPKR (Speaker Header)
This header connects to the L/R Audio output of the motherboard and supports 3W stereo speaker (4 Ohm)
in an AIO chassis.
Pin No.
Definition
1
Speaker OUT R-
2
Speaker OUT R+
3
Speaker OUT L-
4
Speaker OUT L+
23) SPEAKER (Buzzer Header)
Connects to the buzzer on the chassis front panel. The system reports system startup status by issuing a
beep code. One single short beep will be heard if no problem is detected at system startup.
Pin No.
Definition
1
VCC
2
NC
3
NC
4
SPK-
DEBUG
PORT
G.QBOFM
1
1
4
eDP
24) FUSB20_1/FUSB20_2 (USB 2.0/1.1 Headers)
The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
Pin No.
Definition
Pin No.
Definition
1
Power (5V)
6
USB DY+
2
Power (5V)
7
GND
3
USB DX-
8
GND
4
USB DY-
9
No Pin
5
USB DX+
10
NC
•
Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header.
•
Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord from the power
outlet to prevent damage to the USB bracket.
2
10
9
1
