ASROCK FM2A75M-DGS R2.0 Quick Installation Manual page 11

USB 3.0 Header
(19-pin USB3_2_3)
(see p. 2, No. 21)
Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p. 2, No. 23)
1. High Definition Audio supports Jack Sensing, but the panel wire on
the chassis must support HDA to function correctly. Please follow the
instruction in our manual and chassis manual to install your system.
2. If you use AC'97 audio panel, please install it to the front panel audio
header as 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 HD audio panel only. You don't
need to connect them for AC'97 audio panel.
E. To activate the front mic.
For Windows
Go to the "FrontMic" Tab in the Realtek Control panel. Adjust
"Recording Volume".
Chassis Intrusion Header
(2-pin CI1)
(see p.2, No. 28)
ASRock FM2A75M-DGS R2.0 Motherboard
Besides two default USB 3.0
ports on the I/O panel, there is
one USB 3.0 header on this
motherboard. This USB 3.0
header can support two USB 3.0
ports.
This is an interface for the front
panel audio cable that allows
convenient connection and
control of audio devices.
®
8 / 8 64-bit / 7 / 7 64-bit / Vista
This motherboard supports
CASE OPEN detection feature
that detects if the chassis cover
has been removed. This feature
requires a chassis with chassis
intrusion detection design.
TM TM
/ Vista 64-bit OS:
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