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A520M-ITX/ac
Serial ATA3 Connectors
(SATA3_1_3:
see p.7, No. 7)
(SATA3_2_4:
see p.7, No. 8)
ese four SATA3
connectors support SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
USB 2.0 Headers
(9-pin USB_3_4)
(see p.7, No. 11)
ere is one header on
this motherboard. is
USB 2.0 header can
support two ports.
USB 3.2 Gen1 Header
(19-pin USB3_4_5)
(see p.7, No. 9)
ere is one header on
this motherboard. is
USB 3.2 Gen1 header can
support two ports.
Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.7, No. 15)
is header is for
connecting audio devices
to the front audio panel.
DUMMY
GNDGND
P+
P-
P+
P-
R
USB_PW
IntA_PB_D+
Dummy
IntA_PB_D-
GND
GND
IntA_PB_SSTX-
IntA_PB_SSRX-
VbusV
VbusV
IntA_PA_SSRX-
IntA_P
GND
IntA_PA_SSTX-
IntA_P
GND
IntA_PA_D-
IntA_PA_D+
1. High Denition Audio supports Jack Sensing, but the panel wire on the chassis
must support 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”.
OUT L
1
OUT_DETECT
OUT R
MIC2-R
MIC2-L
AGND_A
N/A
SATA3_4
SATA3_2
SATA3_3
SATA3_1