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Chapter 4: Motherboard Connections
SATA Ports
Six SATA 3.0 ports (I-SATA0/1/2/3/4/5) are located on the X12DAi-N6 motherboard supported
by the C621A chipset. These SATA ports support RAID 0, 1, 5, and 10. In addition, there are
also two SATA ports (I-SATA6, I-SATA7) that include SATA DOM power. SATA ports provide
serial-link signal connections, which are faster than the connections of Parallel ATA.
Note
: For more information on the SATA HostRAID configuration, please refer to the Intel
SATA HostRAID user's guide posted on our website at
http://www.supermicro.com.
M.2 Slot
The X12DAi-N6 motherboard has two M.2 slots (JM2_1 and JM2_2). M.2 allows for a variety of
card sizes, increased functionality, and spatial efficiency. The M.2 socket on the motherboard
supports PCIe 4.0 x4 (32 Gb/s) SSD cards in the 2280 and 22110 form factors.
Note:
JM2_2 cannot be used if a graphics card is installed in any of the PCIe slots 1-5.
VROC Intel RAID Key Header
The JRK1 header allows the user to enable RAID functions for NVMe connections. Refer to
the table below for pin definitions.
Intel RAID Key Header
Pin Definitions
Pin#
Defintion
1
GND
2
PU 3.3V Stdby
3
GND
4
PCH RAID KEY
VROC Intel RAID Key Header
The JRK1 header allows the user to enable RAID functions for NVMe connections. Refer to
the table below for pin definitions.
Intel RAID Key Header
Pin Definitions
Pin#
Defintion
1
GND
2
PU 3.3V Stdby
3
GND
4
PCH RAID KEY
NC = No Connection