SUPER MICRO Computer m28sab/m28sab-oem manual Front Components, Connectors and Pin Definitions

M28SAB Mobile Rack User's Guide

3-2 Front Components, Connectors and Pin Definitions

#1 - #2 SAS Ports

The SAS ports are used to connect the Mini- SAS cables. The ports are designated SAS IN #0 - #3, and SAS IN #4 - #7. Each port is also compatible with SATA drives.

#3 - #4 Backplane Main Power Connectors

The 4-pin connectors, designated JP1 and JP3, provide power to the backplane. See the table on the right for pin definitions. Both of these connectors must be used at the same time.

#5. - #6. MG9071 Chip

The MG9071 chip is an enclosure manage- ment controller chip.

#7 - #8 Upgrade Connector

The upgrade connectors are designated JP46 and JP47. The upgrade connector is for manu- facturing use only.

#9 Fan Connectors

The fan connector is designated JP54.

Backplane

Main Power

4-Pin Connectors

Pin#	Definition
1	+12V
2 and 3	Ground
4	+5V

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