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Chapter 4: Motherboard Connections
RAID Key Header
A RAID Key header is located at JRK1 on the motherboard. The RAID key is used to support
onboard S-SATA connections.
SGPIO Header
The T-SGPIO3 (Serial General Purpose Input/Output) header is used to communicate with
the enclosure management chip on the backplane.
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to inform you of a chassis intrusion when the chassis is opened. Refer to
the table below for pin definitions.
NVMe Slots
Use the four NVMe slots (NVME10, NVME11, NVME12 and NVME13) to attach high-speed
PCI-E storage devices. (NVME10 and NVME11 controlled by CPU1, NVME12 and NVME13
controlled by CPU2.)
SATA DOM Power Connectors
Two power connectors for SATA DOM (Disk On Module) devices are located at JSD1 and
JSD2. Connect appropriate cables to JSD1 and JSD2 to provide power for your SATA DOM
devices.
SATA DOM Power
Pin Definitions
Pin#
Definition
1
+5V
2
Ground
3
Ground
SGPIO Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
NC
2
NC
3
Ground
4
Data out
5
Load
6
Ground
7
Clock
8
NC
NC = No Connection
Chassis Intrusion
Pin Definitions
Pins
Definition
1
Intrusion Input
2
Ground
