One 2x5 connector on the server board (J3J1) provides an option to support additional two USB ports. The pin-out of the connector is detailed in the following table:

Table 36. Internal USB Connector Pin-out (J3J1)

5.6Fan Headers

The server board provides four SSI-compliant 4-pin and four SSI-compliant 6-pin fan headers to be used as CPU, and I/O cooling fans. 3-pin fans are supported on all fan headers. 6-pin fans are supported on headers J3H4, J3H3, J3H2, and J3H1. 4-pin fans are supported on headers J9J1, J5J1, J3H4, J3H3, J9B4, and J9B3. 4-pin fans are not supported on header J3H2, and J3H1, since these headers are tied to the CPU1 PWM. These fan headers should also not be used for CPU cooling fans. The pin configuration for each of the 4-pin and 6-pin fan headers is identical and is defined in the following tables.

Two 4-pin fan headers are designated as processor cooling fans:

-CPU1 fan (J9J1)

-CPU2 fan (J5J1)

Four 6-pin fan headers are designated as hot-swap system fans:

-Hot-swap system fan 1 (J3H4)

-Hot-swap system fan 2 (J3H3)

-Hot-swap system fan 3 (J3H2)

-Hot-swap system fan 4 (J3H1)

Two 4-pin fan headers are designated as rear system fans:

-System fan 5 (J9B4)

-System fan 6 (J9B3)

Note: Intel Corporation server boards support peripheral components and contain a number of high-density VLSI and power delivery components that need adequate airflow to cool. Intel’s own chassis are designed and tested to meet the intended thermal requirements of these components when the fully integrated system is used together. It is the responsibility of the system integrator that chooses not to use Intel developed server building blocks to consult vendor datasheets and operating parameters to determine the amount of airflow required for their specific application and environmental conditions. Intel Corporation can not be held responsible if components fail or the server board does not operate correctly when used outside any of their published operating or non-operating limits.