Supermicro SuperWorkstation SYS-531A-I User Manual page 50

JSPDIF_OUT Header
The SPDIF OUT (JSPDIF_OUT) is used for digital audio output. You will also need the
appropriate cable to use these features.
Speaker/Buzzer Header
On the JD1 header, pins 1-4 are for the speaker and pins 3-4 are for the buzzer. If you wish
to use an external speaker, connect its cable to pins 1-4.
Internal Speaker/Buzzer
The Internal Speaker/Buzzer (SP1) is used to provide audible indications for various beep
codes. Refer to the table below for pin definitions.
SPDIF OUT
Pin Definitions
Pin# Signal
1 S/PDIF_OUT
2 Ground
Speaker Connector
Pin Definitions
Pin# Signal
1-4 Speaker
3-4 Buzzer (Default)
Internal Buzzer
Pin Definitions
Pin# Definition Signal
1 Pos (+) Beep In
2 Neg (-) Alarm Speaker
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Chapter 4: Motherboard Connections