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Chapter 3 Motherboard Connections
Nano SIM Slot
The JSIM1 slot supports a Nano SIM card.
Power Fail LED
The Power Fail LED connection is located on pins 5 and 6 of JF1.
Power Fail LED
Pin Definitions (JF1)
Pin#
Definition
5
3.3V
6
PWR Supply Fail
LAN Activity LED Headers
JTGLED1 is the activity LED header for LAN7 and LAN8, and JTGLED2 is the activity header
for LAN5 and LAN6.
LAN Activity LED
Pin Definitions
Pin#
Definition
1
3V3 Stby
2
LAN5_ACT_N
3
3V3 Stby
4
LAN6_ACT_N
LAN Activity LED
Pin Definitions
Pin#
Definition
1
3V3 Stby
2
LAN7_ACT_N
3
3V3 Stby
4
LAN8_ACT_N
M.2 Connection
The X11SDV-16C/-12C/-8C-TP8F board has two M.2 connectors at JMD1 and JMD2. JMD1
supports M-Key 2280 and is mux with S-SATA5 while JMD2 supports B-Key 3042 and is mux
with S-SATA4. M.2 was formerly Next Generation Form Factor (NGFF) and serves to replace
mini PCI-E and mSATA. M.2 allows for a greater variety of card sizes, increased functionality,
and spatial efficiency.
NVMe I
2
C Header
JNVI2C1 is a management header for the Supermicro AOC NVMe PIC-E peripheral cards.
Connect a corresponding I
2
C cable to this header. Refer to the table below for pin definitions.
I
2
C Header
Pin Definitions
Pin#
Definition
1
PE_HP_SCL
2
Ground
3
PE_HP_SDA
4
PVCCIO
