Reference Guide

Item
Type (e.g. Flash PROM,
EEPROM)
Can user programs or
operating system write
data to it during normal
operation?
Purpose? (e.g. boot code)
iDRAC
Cache + registers
No
Processor cache + registers
LOM EEPROM
EEPROM
No
Onboard LOM FW
LOM Flash
Flash
No
Onboard LOM FW
24x2.5" MCU/Backplane
MCU
Flash+SRAM
No
To decode LED blinking
pattern
Expander BP (RTS+)
SPI Flash
Flash
No
Expander firmware
12x3.5" MCU Backplane
MCU
Flash+SRAM
No
To decode LED blinking
pattern
FCB
H8
ROM+RAM
No
FCB firmware
CPLD
EBR SRAM
No
Predominately for power
sequence, watchdog and
FAN control.
FRU
FRU
No
FAN table
Mid-plane
EEPROM
EEPROM
No
SAS/SATA re-driver settings.
H730, PERC (RTS+)
NVSRAM
NVSRAM
No
Configuration data
FRU
FRU
No
Card manufacturing
information
1-Wire EEPROM
1-Wire EEPROM
No
Holds default controller
properties/settings
SPD
SPD
No
Memory configuration data
SBR
SBR
No
Bootloader
Flash
Flash
No
Card firmware
ONFI Backup Flash
ONFI Backup Flash
No
Holds cache data during
power loss
SDRAM
SDRAM
No
Cache for HDD I/O
H330, PERC
NVSRAM
NVSRAM
No
Configuration data
FRU
FRU
No
Card manufacturing
information
1-Wire EEPROM
1-Wire EEPROM
No
Holds default controller
properties/settings
SBR
SBR
No
Bootloader
Flash
Flash
No
Card firmware
LSI2008
EEPROM
EEPROM
No
Card Configuration
FLASH
FLASH
No
Card firmware
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