Asrock a790gxh 128m User Manual

3 1

CD
-L

GND GND

CD
-R

CD1

Internal Audio Connectors

This connector allows you

(4-pin CD1)

to receive stereo audio input

(CD1: see p.12 No. 31)

from sound sources such as
a CD-ROM, DVD-ROM, TV
tuner card, or MPEG card.

J_SENSE

OUT2_L

MIC_RET

PRESENCE#

GND

OUT2_R

MIC2_R

MIC2_L

OUT_RET

Front Panel Audio Header

This is an interface for the front

(9-pin HD_AUDIO1)

panel audio cable that allows

(see p.12, No. 30)

convenient connection and
control of audio devices.

USB 2.0 Headers

Besides four default USB 2.0

(9-pin USB10_11)

ports on the I/O panel, there are

(see p.12 No. 26)

three 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.12 No. 23)

(9-pin USB6_7)
(see p.12 No. 24)

Infrared Module Header

This header supports an

(5-pin IR1)

optional wireless transmitting

(see p.12 No. 27)

and receiving infrared module.

DUMMY

GND

+5V

IRTX

IRRX

USB_PWR

P+7

P-7

P+6

P-6

GND

DUMMY

USB_PWR

P-8

GND

DUMMY

USB_PWR

P+8

GND

P-9

P+9

USB_PWR

P-10

GND

DUMMY

USB_PWR

P+10

GND

P-11

P+11

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).