Supermicro SuperServer SYS-221BT-DNTR - Page 71

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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/.
PCIe 5.0 x8 NVMe M.2 Slot
A PCIe 5.0 x8, located at SXB5, supports two NVMe M.2 connections in the 2280 or 22110
form factor, which depends on the type of the riser card used on the slot. M.2 allows for a
variety of card sizes, increased functionality, and spatial e󰀩ciency. Refer to the layout below
for the location of the SXB5 slot.
Note: The SXB5 slot supports the SCC-P2HM2G4-B1 and the SCC-A2NM2241G3-B1. The
SCC-P2HM2G4-B1 supports two NVMe M.2 devices (up to Gen 4) in the 22110 form factor,
and the SCC-A2NM2241G3-B1 supports two NVMe M.2 devices (up to Gen 3) in the 2280
form factor.
P1 NS1/P2 NS2/P2 NS3 Connectors
Three PCIe 5.0 x8 connectors are located at P1 NS1, P2 NS2, and P2 NS3 headers. P1
NS1 PCIe 5.0 x8 connector (NS1) is supported by CPU1, while P2 NS2 5.0 x8 (NS2) and
P2 NS3 5.0 x8 (NS3) are supported by CPU2. Refer to the X13DET-B for the locations of
P1 NS1, P2 NS2, and P2 NS3 slots.
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.
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)