Hardware User Guide

Intel® RAID Controller RS3UC080 User Guide 5
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.