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Chapter 4: Motherboard Connections
NC-SI Header for IPMI Support
A Network-Controller Sideband Interface (NC-SI) header is located at JNCSI1 on the
motherboard. For remote management, connect the appropriate cable from this header
to an add-on card to provide the out-of-band (sideband) connection between the onboard
Baseboard Management Controller (BMC) and a Network Interface Controller (NIC). For
the network sideband interface to work properly, you will need to use a NIC add-on card
that supports NC-SI and also need to have a special cable. Please contact Supermicro at
www.supermicro.com to purchase the cable for this header. Refer to the table below for
pin definitions.
NCSI
Pin Definition
Pin#
Definition
Pin#
Definition
1
NCSI Clock
2
Ground
3
NCSI_CRS_DV
4
Ground
5
NCSI_RX_D0
6
Ground
7
NCSI_RX_D1
8
Ground
9
NCSI_TX_D0
10
Ground
11
NCSI_TX_D1
12
Ground
13
NCSI_TX_EN
14
NCSI_Present_N
15
JNCSI_SRB_IN
16
JNCSI_ARB_OUT
17
P5V_AUX
18
P5V_AUX
19
P5V_AUX
20
P5V_AUX
21
P5V_AUX
22
Test Point
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.