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Chapter 4: Motherboard Connections
Nano SIM Slot
The JSIM1 slot supports a Nano SIM card.
Power SMB (I
2
C) Header
Power System Management Bus (I
2
C) header at JPI
2
C1 monitors the power supply, fan and
system temperatures. Refer to the table below for pin definitions.
Power SMB Header
Pin Definitions
Pin#
Definition
1
Clock
2
Data
3
Power Fail
4
Ground
5
NC
NVMe I
2
C Header
Connectors JNVI2C1 and JNVI2C2 are management headers for the Supermicro AOC NVMe
PCIe peripheral cards. Connect the I
2
C cable to these connectors.
SGPIO Header
There is one Serial Link General Purpose Input/Output (I-SGPIO1) header located on the
motherboard. Refer to the table below for pin definitions.
SGPIO Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
NC
2
NC
3
Ground
4
SSATA Data
5
SSATA Load
6
Ground
7
SSATA Clock
8
NC
SlimSAS Connectors
The SlimSAS connectors at JSLIM1 and JSLIM2 support PCIe 3.0 x4 devices.
Speaker/Power LED
Pins 1-3 of JD1 are used for power LED indication, and pins 4-7 are for the speaker. Note
that the speaker connector pins are used with an external speaker. Refer to the tables below
for pin definitions.
PWR LED Connector
Pin Definitions
Pin#
Signal
1
FP_PWR_LED_P
2
FP_PWR_LED_N
3
FP_PWR_LED_N
Speaker Connector
Pin Definitions
Pin#
Signal
4
P5V
5
NC
6
NC
7
R_SPKRIN