Supermicro SuperServer 120C-TR User Manual page 61

BMC External I C Header
2
A System Management Bus 4-pin header for the BMC is located at JIPMB1. Connect a cable
to this header to use the IPMB I
Chassis Intrusion
A Chassis Intrusion header is located at JL1. Attach the appropriate cable from the chassis
to the header to alert when the chassis is opened.
M.2 Slots
The motherboard has two M.2 SSD slots. M.2-P1, located at JM2_1, is supported by CPU1,
and M.2-P2, located at JM2_2, is supported by CPU2. They support PCIe 3.0 x2 M.2 NVMe
SSDs in the 2280 and 22110 form factors.
NCSI Connector
Use the Network Controller SideBand Interface (NCSI) connector, JNSCI1, to connect a
Network Interface Controller (NIC) to the motherboard.
NVME Connectors
Eight PCIe 4.0 x4 SlimSAS connectors, located at JNVME1-JNVME8, offers eight NVME
connections. P1_NVME0 - P1_NVME3 (JNVME1/2/3/4) are supported by CPU1, and P2_
NVME0 - P2_NVME3 (JNVME5/6/7/8), CPU2.
Note: Connect the P1_NVME0 first for your system to work properly.
I-SATA 3.0 and S-SATA 3.0 Ports
The motherboard has eight I-SATA 3.0 ports (I-SATA 0-7) and six S-SATA (S-SATA 0-3, S-SATA
4, S-SATA 5) supported by the Intel PCH C621A chipset. S-SATA 4/S-SATA 5 can be used
with Supermicro SuperDOMs which are orange SATA DOM connectors with power pins built
in, and do not require external power cables. S-SATA 4/S-SATA- 5 ports are compatible with
regular SATA HDDs or SATA DOMs that need external power cables.
Chapter 4: Motherboard Connections
C connection on your system.
2
External I C Header
2
Pin Definitions
Pin# Definition
1 Data
2 Ground
3 Clock
4 No Connection
Chassis Intrusion
Pin Definitions
Pins Definition
1 Intrusion Input
2 Ground
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