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Chapter 2: Installation
2
NVMe SMBus Headers
NVMe SMBus (I
2
C) headers (JNVI
2
C1/JNVI
2
C2), used for PCI-E SMBus clock and data
connections, provide hot-plug support via dedicated SMBus interface. This feature is only
available for a Supermicro complete system with an SMCI-proprietary NVMe add-on card
and cable installed for each NVMe SMBus header supported. See the table below for pin
defi nitions.
NVMe SMBus Header
Pin Defi nitions
Pin# Defi nition
1
Data
2
Ground
3
Clock
4
VCCIO
IPMI CODE
BIOS
LICENSE
X11DPG-OT-CPU
REV:1.00
SMCI-Proprietary PCI-E x24 Slot
S-S
AT
A0
JNCSI
CN10
FA
N
8
FAN7
FA
N
10
FA
N
5
FA
N
4
FA
N
3
FA
N
9
J31
J33
J34
JPW12
JPW1
1
JPW21
JPW22
JPW19
JPW20
JPWR1
JPWR2
JPWR3
JPWR4
JPWR5
JPWR6
JPWR7
JPWR8
JPWR9
JPWR10
JPWR13
JPWR15
JPWR14
JPWR16
JPWR12
JPWR
11
CN1
1
LE2
LE1
JBT1
JF1
JRK1
BT1
JSDCARD1
JTPM1
JP2
JNVI2C1
JNVI2C2
JIPMB1
JUIDB1
JWD1
JPME1
JL1
JS2
JS1
BIOS
J32
FA
N
6
FA
N
2
FA
N
1
JPG1
SD CARD
SATA0-3 SATA4-7
UID
COM1
VGA
LAN2
LAN1
USB3/4
(3.0)
IPMI_LAN
USB1/2 (3.0)
CPU2
USB0
CPU1
BATTERY
P2-DIMMF2
P2-DIMME1
P2-DIMME2
P2-DIMMD1
P2-DIMMD2
P2-DIMMA2
P2-DIMMA1
P2-DIMMB2
P2-DIMMB1
P2-DIMMC2
P2-DIMMC1
P1-DIMMF2
P1-DIMME1
P1-DIMME2
P1-DIMMD1
P1-DIMMD2
P1-DIMMA2
P1-DIMMA1
P1-DIMMB2
P1-DIMMB1
P1-DIMMC2
P1-DIMMC1
LEDM1
BMC
SMCI-Proprietary PCI-E x24 Slot
SMCI-Proprietary PCI-E x24 Slot
SMCI-Proprietary PCI-E x24 Slot
LAN
CTRL
PCH
LED1
JM2-1
1
1. JNVI
2
C1
2. JNVI
2
C2
3. PCI-E M.2 Slot
PCI-E M.2 Slot
This motherboard has one PCI-E M.2 slot. M.2 was formerly Next Generation Form Factor
(NGFF) and serves to replace mini PCI-E. M.2 allows for a variety of card sizes, increased
functionality, and spatial effi ciency. The M.2 socket on the motherboard supports PCI-E 3.0
X4 (32 Gb/s) SSD cards in the 2260, 2280 and 22110 form factors.
3
