Dell PowerEdge R810 - Manual (Page 7)

Dell PERC H200i storage controller
Flash/NVSRAM/FRU (if applicable) Details
Size: FRU: 256 Bytes
Boot ROM: 8 KB
Flash: 8 MB
NVSRAM: 128 KB
Type: [e.g. Flash PROM, EEPROM]: Flash (NOR), EEPROM and NVSRAM
Can user programs or operating system write data to it
during normal operation? No
Does it retain data when powered off? Yes
Purpose? [e.g. boot code] Flash stores the storage controllers firmware
NVSRAM stores the controller configuration FRU
stores the PPID, manufacturing date etc.
How is data input to this memory? FRU data is preprogrammed at board build. NVSRAM
is updated by the storage controller Flash is updated
by Dell provided update package
How is this memory write protected? FRU is not write protected but everything else is
software write protected
Remarks PERC H200i controller is optional
PCIe Switch EEPROM (x1 on the IO planar, x1 on the
center riser) Details
Size: 128 KB
Type: [e.g. Flash PROM, EEPROM]: SEEPROM
Can user programs or operating system write data to it
during normal operation? No
Does it retain data when powered off? Yes
Purpose? [e.g. boot code] Store PCIe Switch configuration information
How is data input to this memory? Loading flash memory requires a vendor provided
firmware file and loader program which is executed by
booting up the system from a floppy or OS based
executable containing the firmware file and the loader.
System loaded with arbitrary data in firmware memory
would not operate.
How is this memory write protected? Software write protected