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Chapter 4: Motherboard Connections
13~14. Center/LFE Out and Surround Out
This motherboard features a 7.1+2 Channel High Definition Audio (HDA) codec that provides
10 DAC channels. The HD Audio connections simultaneously supports multiple-streaming
7.1 sound playback with two channels of independent stereo output through the front panel
stereo out for front, rear, center and subwoofer speakers. To enable this function, download
the advanced software for this motherboard.
CEN/LFE is the audio output for the center channel and low frequency channel.
15. S/PDIF Out
This is a fibre optic audio output for a TOSLINK connector and cable.
16. Line In
This type of connector attaches audio devices.
17. Line Out
This is a headphone jack.
18. Mic In
This is a microphone jack.
19. UID Switch
A Unit Identifier (UID) switch is located on the I/O backpanel. The rear UID LED is located next
to the UID switch. When you press the UID switch, both rear and front UID LED indicators
will turn on. Press the UID switch again to turn off the LED indicators. The UID Indicator
provides easy identification of a system that may be in need of service.
Note: UID can also be triggered via IPMI on the serverboard. For more information on IPMI,
please refer to the IPMI User's Guide posted on our website at
http://www.supermicro.com
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