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Chapter 4 Motherboard Connections
4.2 Headers and Connectors
RAID Key Header
A VROC RAID Key header is located at JRK1. It supports VMD used in creating optional
advanced NVMe RAID configurations. See the VROC appendix for details.
RAID Key Header
Pin Definitions
Pin#
Definition
1
Ground
2
3.3V Standby
3
Ground
4
PCH_RAID_KEY
M.2 Slot
The M.2-HC1 connector is an M.2 slot for SSD storage. It is PCIe 3.0 x4 SSD in the form
factors 2242, 2260, 2280 or 22110.
Main Power Connector
PWR1 and PWR2 are primary power supply connectors that provide power to the
motherboard via the chassis backplane.
12V GPU Power Connector
JGPU1 is the EATX 12V 8-pin power connector.
MCIO PCIe x16 Connector
CN1 and CN2 are the Mini Cool Edge IO PCIe x16 connectors.
Proprietary Riser Power Connector
JRC1 is the proprietary riser power connector with a rated 150W, two 75W CEM specification
Proprietary Riser Power
Pin Definitions
Pin#
Definition
1
GND
2
GND
3
GND
4
GND
5
12V ATX
6
12V ATX
7
3.3V ATX
10
3.3V AUX