ASROCK Q1900B-ITX User Manual page 18

Serial ATA2 Connectors
(SATA2_1:
see p.7, No. 8)
(SATA2_2:
see p.7, No. 10)
USB 2.0 Headers
(9-pin USB4_5)
(see p.7, No. 5)
Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.7, No. 14)
1. High Definition Audio supports Jack Sensing, but the panel wire on the chassis must sup-
port HDA to function correctly. Please follow the instructions in our manual and chassis
manual to install your system.
2. If you use an AC'97 audio panel, please install it to the front panel audio header by the
steps below:
A. Connect Mic_IN (MIC) to MIC2_L.
B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L.
C. Connect Ground (GND) to Ground (GND).
D. MIC_RET and OUT_RET are for the HD audio panel only. You don't need to connect
them for the AC'97 audio panel.
E. To activate the front mic, go to the "FrontMic" Tab in the Realtek Control panel and
adjust "Recording Volume".
3W Audio AMP Output
Wafer Header
(4-pin SPEAKER2)
(see p.7, No. 15)
14
SATA2_1
SATA2_2
USB_PWR
P-
P+
GND
DUMMY
1
GND
P+
P-
USB_PWR
GND
PRESENCE#
MIC_RET
OUT_RET
1
OUT2_L
J_SENSE
OUT2_R
MIC2_R
MIC2_L
Front_R-
Front_R+
Front_L+
Front_L-
1
These two SATA2
connectors support SATA
data cables for internal
storage devices with up to
3.0 Gb/s data transfer rate.
Besides three USB 2.0
ports on the I/O panel,
there is one header on this
motherboard. This USB
2.0 header can support
two ports.
This header is for
connecting audio devices
to the front audio panel.
Please connect the chassis
speaker to this header.