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Chapter 4: Motherboard Connections
4.2 Headers and Connectors
Fan Headers
There are seven 4-pin fan headers (FAN1 ~ FAN5, FANA ~ FANB) on the motherboard.
All
are 4-pin fan headers and are backward compatible with the traditional 3-pin fans. However,
fan speed control is available for 4-pin fans only by Thermal Management via the IPMI 2.0
interface. Refer to the table below for pin definitions.
Required Connection
4-pin Power
Pin Definitions
Pin#
Definition
1 - 2 Ground
3 - 4 P12V (12V Power)
4-Pin Power Connector
JPWR3 is an 4-pin 12V DC power input for the CPU that must be connected to the power
supply. Refer to the table below for pin definitions..
Fan Header
Pin Definitions
Pin#
Definition
1
Ground (Black)
2
5A/+12V (Red)
3
Tachometer
4
PWM_Control
Disk-On-Module Power Connector
Two power connectors for SATA DOM (Disk-On-Module) devices are located at JSD1 and
JSD2. Connect appropriate cables here to provide power support for your Serial Link DOM
devices.
DOM Power
Pin Definitions
Pin#
Definition
1
5V
2
Ground
3
Ground
