Supermicro SuperServer SYS-122H-TN User Manual page 100

SuperServer SYS-122H-TN: Motherboard Connections, Jumpers, and LEDs
For a detailed diagram of the X14DBM-SP motherboard, see the layout under
Quick Reference" on page
M.2 Slots
Two M.2 M-Key slots are located at M.2-C1 and M.2-C2 on the X14DBM-SP motherboard. M.2
was formerly known as Next Generation Form Factor (NGFF) and serves to replace mini PCIe.
M.2 allows for a variety of card sizes, increased functionality, and spatial efficiency. The M.2 M-
Key slots on the motherboard support PCIe 5.0 x2 devices in a 2280/22110 form factor.
For a detailed diagram of the X14DBM-SP motherboard, see the layout under
Quick Reference" on page
MCIO NVMe Connectors
MCIO NVMe connectors, located at P0_NVME0–P0_NVME3 and P1_NVME0–P1_NVME3,
provide eight PCIe 5.0 x8 connections on the motherboard. P0_ NVME0– P0_ NVME3
connections are supported by CPU1, and P1_NVME0–P1_NVME3 connections, by CPU2.
Use these MCIO connectors to support high-speed PCIe storage devices.
For a detailed diagram of the X14DBM-SP motherboard, see the layout under
Quick Reference" on page
Note: When installing an NVMe device on a motherboard, please be sure to connect the
first NVMe port (P0_NVME0) first for your system to work properly.
NC-SI Connection
Note: For detailed instructions on how to configure Network Interface Card (NIC) settings,
refer to the Network Interface Card Configuration User's Guide posted on the web page
under the link: https://www.supermicro.com/support/manuals.
For a detailed diagram of the X14DBM-SP motherboard, see the layout under
Quick Reference" on page
NVMe SMBus Headers
Two NVMe SMBus (I²C) headers are located at JNVI²C1 and JNVI²C2 on the X14DBM-SP
motherboard). They are used for PCIe SMBus clock and data connections, provides hot-plug
support through a dedicated SMBus interface. This feature is only available for a Supermicro
complete system with a Supermicro proprietary NVMe add- on card and a proper cable
installed.
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