Intel RS3UC080 Hardware User Guide - Page 19

5 Intel® RAID Controller RS3UC080 Characteristics Memory The Intel 12Gb/s SAS Controller provides one 4-M × 16-bit Flash ROM to store the firmware and the BIOS. The Intel 12Gb/s SAS Controller can provide up to 32 K × 8-bit NVSRAM for storing nonvolatile RAID information when a system failure occurs or to reflash the board to run IR firmware. LED The Intel 12Gb/s SAS Controller Heartbeat LED, CR1, blinks green to indicate the controller is capable of general activity. Connectors PCIe Connector (EC1). The Intel 12Gb/s SAS Controller supports a x8 interface. The PCIe host interface connection is through the edge connector, EC1, which provides connections on both the top (EC1 B) and bottom (EC1 A) of the board. The signal definitions and pin numbers conform to the PCIe specification. SATA+SAS Connector (J1). The Intel 12Gb/s SAS Controller supports SATA and SAS connectors through connectors that are SFF-8643 mini-SAS HD, internal connectors. Physical Characteristics The Intel 12Gb/s SAS Controller is a 6.0-in. × 2.7-in., low-profile board. The component height on the top and bottom of the Intel 12Gb/s SAS Controller is in accordance with the PCIe specification. The following figure shows the controller board layout. Intel® RAID Controller RS3UC080 User Guide 5