Supermicro SuperServer SYS-221H-TNR - Page 76

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Chapter 4: Motherboard Connections
NC-SI Connector
The NC-SI (Network Controller Sideband Interface) connector is located at (JNCSI1). This
connector is used to connect a Network Interface Card (NIC) to the motherboard to allow the
onboard BMC (Baseboard Controller) to communicate with a network.
Note: For detailed instructions on how to con gure Network Interface Card (NIC) settings,
please refer to the Network Interface Card Con guration User's Guide posted on the web
page under the link: http://www.supermicro.com/support/manuals/.
6-pin BMC External I2C Header
A System Management Bus header for the BMC is located at JIPMB1. Connect the appropriate
cable here to use the IPMB I
2
C connection on your system. Refer to the motherboard layout
in Chapter 1 for the location of JIPMB1.
VROC RAID Key Header
A VROC RAID Key header is located at JRK1 on the motherboard. Install a VROC RAID key
on JRK1 for NVMe RAID support as shown in the illustration below. Refer to the motherboard
layout in Chapter 1 for the location of JRK1.
Note: For detailed instructions on how to congure VROC RAID settings, please refer to the
VROC RAID Conguration User's Guide posted on the web page under the link: http://www.
supermicro.com/support/manuals/.
Note: The graphics contained in this user's manual are for illustration only. The components
installed in your system may or may not look exactly the same as the graphics shown in the
manual.
Intel VROC Key
Pin Denitions
Pin# Denition
1 Ground
2 3.3V Standby
3 Ground
4 PCH RAID Key
VROC Key
VROC Key Header (JRK1)