3
ASRock AD2550B-ITX Motherboard
English
I/O Panel
* There are two 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
SPEED LED
Status Description Status Description
Off No Link Off 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link
ACT/LINK
LED
SPEED
LED
LAN Port
1
PS/2 Mouse Port (Green)
7 USB 2.0 Ports (USB01)
2
Parallel Port
8 USB 2.0 Ports (USB23)
* 3
LAN RJ-45 Port
9 VGA Port
4
Line In (Light Blue)
10 COM Port
5
Front Speaker (Lime)
11 PS/2 Keyboard Port (Purple)
6
Microphone (Pink)
To enable Multi-Streaming function, you need to connect a front panel audio cable to the front
panel audio header. After restarting your computer, you will find “VIA HD Audio Deck” tool on
your system. Please follow below instructions according to the OS you install.
Please click “VIA HD Audio Deck” icon , and click “Advanced Options” on the left side
on the bottom. In “Advanced Options” screen, select “Independent Headphone”, and click
“OK” to save your change.
