Supermicro SuperServer 420GP-TNAR User Manual page 69

4-pin BMC External I
2
A System Management Bus header for BMC is located at JIPMB1. Connect the appropriate
cable here to use the BMC I
definitions.
Universal Serial Bus (USB) Ports and Headers
A internal Type-A USB 3.0 connector is located at JUSB1.
C Header
C connection on your system. Refer to the table below for pin
2
External I C Header
2
Pin Definitions
Pin# Definition
1 Data
2 Ground
3 Clock
4 No Connection
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Chapter 4: Motherboard Connections