Supermicro SuperServer SYS-510T-WTR User Manual page 53

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.
Chapter 4: Motherboard Connections
Internal Buzzer
Pin Definitions
Pin# Definition
1 Pos (+) VCC
2 Neg (-) Beep In
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