6.
Serial General Purpose Input/Output connectors
(6-1 pin SGPIO1, 8-1 pin PSGPIO 1/2)
The SGPIO 1 connectors are used for the Intel Rapid Storage Technology
Enterprise SGPIO interface that controls the LED pattern generation, device
information and general purpose data.
The PSGPIO 1/2 connectors are used for PIKE card.
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Chapter 2: Hardware information