Supermicro SC846BE1C-R1K28B User Manual page 125

6. Fan Connectors
The 3-pin connectors, designated FAN1,
through FAN3, provide power to the fans.
See the table on the right for pin defini-
tions.
7. - 13. SAS Connectors
The primary and secondary sets of SAS
connectors provide expander features in-
cluding cascading and failover. From right
to left the ports are Primary 0, Primary 1
and Secondary 0, Secondary 1. Note that
secondary SAS ports are not present on the
SAS2-846EL1 backplane.
Appendix D: SAS2-846EL Backplane Specifications
D-5
Fan Connectors
Pin# Definition
1 Ground
2 +12V
3 Tachometer