Flash Rom; Boot Strap Rom (Seeprom); Nvsram; Sdram (Cache) - Intel RMS2MH080 Hardware User's Manual

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Local 72-bit DDR2 SDRAM interface with ECC checking
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Fusion MPT message unit
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PCI Express* interface supports x8, x4, and x1 lane configurations

Flash ROM

An 8-MB CFI-compliant flash ROM is used to accommodate RAID firmware and RAID
BIOS Console 2 OpROM.

Boot Strap ROM (SEEPROM)

The serial bootstrap ROM is used to configure the LSI* SAS2108 ROC before the server
board configures the PCI Express* registers. The bootstrap ROM sets the Phase Lock
Loop (PLL) dividers, bootstrap configuration, and so on.

NVSRAM

A 32-KB NVSRAM is used to store disk and drive setup information.

SDRAM (Cache)

The Intel
800 MHz ECC SDRAM memory. This DIMM is connected directly to the memory
controller interface bus of the ROC and serves as storage for the executable code
transferred from the flash. It also serves as cache during RAID transactions. Cache mode
selection takes immediate effect while the server is online and is available on a per virtual
drive basis. The ROC memory controller provides single-bit ECC error correction with
multi-bit detection support.
The Intel
AXXRSBBU7 only.
The optional Intel
for data cached in the memory. It is connected remotely to the RAID controller through a
supplied cable and remote extender board (REB). See Figure 6.
Intel® Integrated RAID Module RMS2MH080 Hardware User's Guide
®
Integrated RAID Module RMS2MH080 includes 512 MB of integrated DDR2
®
Integrated RAID Module RMS2MH080 supports Intel
®
RAID Smart Battery AXXRSBBU7 provides a battery backup option
®
RAID Smart Battery
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