Appendix C Backplane Specifications 9 - 14. SAS Ports The SAS/SATA ports are used to connect the SAS/SATA drive cables. The six ports are designated #0 - #5. Rear Jumpers and Pin Definitions JP25 JP34 JP33 JP40 JP50 MT4 JP10 JP13 R UPER S SAS823TQ JP36 JP37 REV 1.00A JP18 JP25 JP33 JP34 JP40 JP50 JP41 M14 J8 JP43 JP42 J5 JP18 JP37 JP36 JP41 JP38 JP38 JP52 JP45 JP46 JP42 JP36 JP43 J6 JP29 H3 U40 J10 JP51 JP44 H1 JP53 JP54 JP47 J12 H6 H10 J7 JP26 Figure C-1. Rear Jumpers Explanation of Jumpers To modify the operation of the motherboard, jumpers are used to choose between optional settings. Jumpers create shorts between two pins to change the function associated with it.
Pin 1 is identified with a square solder pad on the printed circuit board. See the motherboard layout page for jumper locations. Note: On a two-pin jumper, "Closed" means the jumper is on both pins and "Open" indicates the jumper is either on only one pin or has been completely removed. 3 2 1 Connector Pins Jumper 3 2 1 Setting 61 J