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Chapter 4: Motherboard Connections
NVMe I
2
C Header
Connector JNVI
2
C1 is a management header for the Supermicro AOC NVMe PCIe peripheral
cards. Please connect the I
2
C cable to this connector.
NVMe I2C Header
Pin Definitions
Pin#
Definition
1
Data
2
GND
3
Clock
4
+3.3V
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to inform you of a chassis intrusion when the chassis is opened. Refer to
the table below for pin definitions.
Chassis Intrusion
Pin Definitions
Pin#
Definition
1
Intrusion Input
2
Ground
External (I²C) Header
The system management bus header is located at JIPMB1. Connect the approriate cable here
to use the IPMB I2C connection on your system. Refer to the table below for pin definitions.
SMBus Header
Pin Definitions
Pin#
Definition
1
Data
2
GND
3
Clock
4
NC
Speaker
The speaker is located at JD1. Please note that the speaker connector pins (1-4) are used
with an external speaker. Refer to the tables below for pin definitions.
Speaker Connector
Pin Definitions
Pin#
Signal
1
P5V
4
R_SPKPIN