ASROCK Q1900DC-ITX Manual page 6

** If you use a 2-channel speaker, please connect the speaker's plug into "Front Speaker Jack". See the table below
for connection details in accordance with the type of speaker you use.
Audio Output
Channels
2
4
6
8
To enable Multi-Streaming, you need to connect a front panel audio cable to the
front panel audio header. After restarting your computer, you will find the "Mixer"
tool on your system. Please select "Mixer ToolBox"
multi-streaming", and click "ok". Choose "2CH", "4CH", "6CH", or "8CH" and then
you are allowed to select "Realtek HDA Primary output" to use the Rear Speaker,
Central/Bass, and Front Speaker, or select "Realtek HDA Audio 2nd output" to use
the front panel audio.
*** Please use a 9~19V power adapter for the DC jack. This jack accepts dual barrel plugs with an inner diameter
of 2.5 mm and an outer diameter of 5.5 mm, where the inner contact is +19V (±10%) DC and the shell is GND.
Please refer to below hardware configuration for the estimated adapter power.
DRAM HDD
1 1
1 2
2 4
Due to the power limitation and PCIe bandwidth (x1), the VGA card is not supported.
When you use the DC-in power adapter, please use the onboard SATA power connector to get the power for
HDDs.
4
Front Speaker Rear Speaker
(No. 8) (No. 6)
V
V
V
V
Estimated Adapter Power
30W
45W
79W
Central / Bass
(No. 10)
-- --
V --
V V
V V
, click "Enable playback
Side Speaker
(No. 5)
--
--
--
V
5.5 mm
2.5 mm