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Chapter 4: Motherboard Connections
4.2 Headers and Connectors
Fan Headers
There are eight 4-pin fan headers (FAN1 ~ FAN8) on the motherboard.
All these 4-pin fan
headers are backwards 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.
Fan Header
Pin Definitions
Pin#
Definition
1
Ground (Black)
2
2.5A/+12V (Red)
3
Tachometer
4
PWM_Control
Required Connection
8-pin Power
Pin Definitions
Pin#
Definition
1 - 4 Ground
5 - 8 P12V (12V Power)
8-Pin Power Connector
JPWR6 is an 8-pin 12V DC power connector for the GPU. Refer to the table below for pin
definitions..
Internal Speaker/Buzzer
The Internal Speaker/Buzzer (SP1) is used to provide audible indications for various beep
codes. Refer to the table below for pin definitions.
Internal Buzzer
Pin Definitions
Pin#
Definition
1
Pos (+)
Beep In
2
Neg (-)
Alarm Speaker
