ASRock B75M - Manual (Page 28)

28
ASRock B75M Motherboard
USB 2.0 Headers Besides two default USB 2.0
(9-pin USB6_7) ports on the I/O panel, there are
(see p.2, No. 20) two USB 2.0 headers on this
motherboard. Each USB 2.0
header can support two USB 2.0
ports.
(9-pin USB8_9)
(see p.2, No. 21)
DUMMY
GND
GND
P+9
P-9
USB_PWR
P+8
P-8
USB_PWR
1
Infrared Module Header This header supports an
(5-pin IR1) optional wireless transmitting
(see p.2, No. 23)
and receiving infrared module.
Consumer Infrared Module Header This header can be used to
(4-pin CIR1) connect the remote controller
(see p.2, No. 22) receiver.
Front Panel Audio Header This is an interface for front
(9-pin HD_AUDIO1)
panel audio cable that allows
(see p.2, No. 30) convenient connection and
control of audio devices.
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.
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