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Chapter 3: Motherboard Connections
RAID Key Header
A RAID Key header is located at JRK1 on the motherboard. It supports VMD used in creating
optional advanced NVMe RAID configurations.
RAID Key Header
Pin Definitions
Pin#
Definition
1
Ground
2
RAID_KEY_PU
3
Ground
4
PCH_RAID_KEY
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to the header to inform you when the chassis is opened.
Chassis Intrusion
Pin Definitions
Pins
Definition
1
Intrusion Input
2
Ground
Power SMB (I
2
C) Header
A Power System Management Bus (I
2
C) header at JPI
2
C1 monitors the power supply, fan,
and system temperatures.
Power SMB Header
Pin Definitions
Pin#
Definition
1
Clock
2
Data
3
PMBUS_Alert
4
GND
5
+3.3V
Overheat/Fan Fail LED Header
Connect an LED indicator to JOH1 to display warnings of chassis overheating and fan failure.
Overheat LED Header
Status
State
Definition
Solid
Overheat
Blinking Fan Fail
