TYAN Thunder K8W S2885 User Manual page 10

J39
J4 SMBus 1.1 Connector
Use this connector to connect
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external SMBUS devices
J14 Onboard Buzzer/Speaker header
Close Pin-3 and 4 (Default) - Onboard Buzzer Enabled
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Open Pin- 3 and 4 - Disable onboard buzzer or connect to chassis
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speaker
J34
J42
Pin1 : SMBUS_DATA
Pin3 : SMBUS_CLK
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J43
J4
J14
Pin2 : GND
Pin4 : NC