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USB 2.0 Headers
(9-pin USB10_11)
(see p.2 No. 15)
(9-pin USB8_9)
(see p.2 No. 16)
(9-pin USB6_7)
(see p.2 No. 14)
Chassis Intrusion Header
(2-pin CI1)
(see p.2 No. 27)
Internal Audio Connectors
(4-pin CD1)
(CD1: see p.2, No. 26)
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:
1 8
1 8
1 8
1 8
1 8
CD1
ASRock
M3N78D FX
Motherboard
Besides four default USB 2.0
ports on the I/O panel, there are
three USB 2.0 headers on this
motherboard. Each USB 2.0
header can support two USB
2.0 ports.
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.
This connector allows you
to receive stereo audio input
from sound sources such as
a CD-ROM, DVD-ROM, TV
tuner card, or MPEG card.
This is an interface for the front
panel audio cable that allows
convenient connection and
control of audio devices.
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