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Chapter 3 Motherboard Connections
Power SMBus (I
2
C) Connector
Power System Management Bus (I
2
C) Connector (JPI2C1) monitors the power supply, fan
and system temperatures.
Power SMBus
Pin Definitions
Pin# Definition
1
Clock
2
Data
3
Power Fail
4
Ground
5
+3.3V
System Management Bus Header
A PCH System Management Bus header for additional slave devices or sensors is located
at JSMB1.
SMBus Header
Pin Definitions
Pin#
Definition
1
Data
2
Ground
3
Clock
NVMe I2C Header
Connector JNVI2C is a management header for the Supermicro AOC NVMe PCI-E peripheral
cards. Connect the I
2
C cable to this connector.