Hi Leandro,
Below is description of jumpers J1B1, J4A4 and J4A5 In RS2SG244 hardware user guide @ http://www.intel.com/support/motherboards/server/rs2sg244/sb/CS-031785.htm.
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2x8-pin connector. Connects to an LED that indicates whether a drive is in a fault condition. There is one LED per port. When lit, each LED indicates the corresponding drive has failed or is in the unconfigured-bad state.
The LEDs function in a direct-attach configuration (there are no SAS expanders). Direct attach is defined as a maximum of one drive connected directly to each port.
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These jumpers are only used with 3rd party chassis WITHOUT Intel SAS expanders. You need prepare 24 LEDs, each LED with 2-pin. Then you can plug each LED's 2 pins to corresponding 2 pins of 2x8-pin connector of 3 jumpers.
To support fault LED with Intel SAS expander installed, you can use SAS in-band SGP feature with SAS expander backplane or connect J1C1 (SES connector) to the SES header of non-expander backplane. For details, please refer to the cabling guide @ http://www.intel.com/support/motherboards/server/sb/CS-030394.htm.
Regards,
Grant
