SUPER MICRO Computer 7047A-T, 7047A-73 user manual Fan Headers, Internal Speaker, Power LED/Speaker

SuperWorkstation 7047A-73/7047A-T User's Manual

Fan Headers

The X9DA7/X9DAi has eight fan headers, all of which are 4-pin fans. However, pins 1-3 of the fan headers are backward compatible with the traditional 3-pin fans. See the table on the right for pin definitions. The onboard fan speeds are controlled by Thermal Management (via Hardware Monitoring) under the Advanced Section in the BIOS. The default is disabled. When using Thermal Man- agement setting, please use all 3-pin fans or all 4-pin fans.

Fan Header

Pin Definitions

(FAN1-8)

Pin# Definition

1Ground (Black)

2+12V (Red)

3Tachometer

4PWM Control

Internal Speaker

The Internal Speaker, located at SP1, can be used to provide audible indica- tions for various beep codes. See the table on the right for pin definitions.

Internal Buzzer (SP1)

Pin Definition

Pin#		Definitions
Pin 1	Pos. (+)	Beep In
Pin 2	Neg. (-)	Alarm
		Speaker

Power LED/Speaker

On JD1 header, pins 1-3 are used for power LED indication, and pins 4-7 are for the speaker. See the tables on the right for pin definitions. Please note that the speaker connector pins (4-7) are used with an external speaker. If you wish to use the on- board speaker, you should close pins 6-7 with a jumper.

PWR LED Connector

Pin Definitions

Pin Setting	Definition
Pin 1	Anode (+)
Pin2	Cathode (-)
Pin3	NA

Speaker Connector

Pin Settings

Pin Setting	Definition
Pins 4-7	External Speaker
Pins 6-7	Internal Speaker

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