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I/O Panel
1
12
1
PS/2 Mouse Port (Green)
2
D-Sub Port (VGA1)
* 3
LAN RJ-45 Port
4
Line In (Light Blue)
** 5
Front Speaker (Lime)
6
Microphone (Pink)
* There is one LED next to the LAN port. Please refer to the table below for the LAN port LED
indications.
LAN Port LED Indications
Activity/Link LED
Status
Description
Off
No Link
Blinking Data Activity
On
Link
** To enable Multi-Streaming function, you need to connect a front panel audio cable to the front
panel audio header. Please refer to below steps for the software setting of Multi-Streaming.
®
For Windows
XP:
After restarting your computer, you will find "Mixer" tool on your system. Please select "Mixer
ToolBox"
, click "Enable playback multi-streaming", and click "ok". Choose "2CH" or
"4CH" and then you are allowed to select "Realtek HDA Primary output" to use Rear Speaker
and Front Speaker, or select "Realtek HDA Audio 2nd output" to use front panel audio. Then
reboot your system.
®
For Windows
7 / Vista
After restarting your computer, please double-click "Realtek HD Audio Manager" on the
system tray. Set "Speaker Configuration" to "Quadraphonic" or "Stereo". Click "Device
advanced settings", choose "Make front and rear output devices playbacks two different audio
streams simultaneously", and click "ok". Then reboot your system.
2
11
10
SPEED LED
Status
Description
Off
10Mbps connection
Orange
100Mbps connection
Green
1Gbps connection
TM
:
ASRock B75M Motherboard
3
9
8
7
7
USB 2.0 Ports (USB4_5)
8
USB 3.0 Ports (USB3_2_3)
9
USB 3.0 Ports (USB3_0_1)
10
HDMI Port (HDMI1)
11
DVI-D Port (DVI1)
12
PS/2 Keyboard Port (Purple)
ACT/LINK
LED
LAN Port
4
5
6
SPEED
LED
3
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