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Chapter 4: Motherboard Connections
12V 8-pin Auxilliary Power Connector (JPWR1)
JPWR1 is an 8-pin ATX power input to provide auxiliary power to the processor. Refer to the
table below for pin definitions.
12V 8-pin Power Connector
Pin Definitions
Pins Definition
1 through 4
Ground
5 through 8
+12V
4.2 Connectors and Headers
Onboard Fan Headers (FAN1~FAN6)
There are six fan headers on the motherboard. These are 4-pin fan headers; pins 1-3 are
backward compatible with traditional 3-pin fans. The onboard fan speeds are controlled
by Thermal Management (via Hardware Monitoring) in the BMC. When using Thermal
Management setting, please use all 4-pin fans.
Fan Header
Pin Definitions
Pin#
Definition
1
Ground (Black)
2
+12V (Red)
3
Tachometer (Yellow)
4
PWM Control (Blue)
Disk-On-Module Power Connector (JSD1 & JSD2)
The Disk-On-Module (DOM) power connector at JSD1 provides 5V power to a solid-state DOM
storage device connected to one of the SATA ports. See the table below for pin definitions.
DOM Power
Pin Definitions
Pin#
Definition
1
5V
2
Ground
3
Ground