Reference Guide

Item
Type (e.g. Flash PROM, EEPROM)
Can user programs or operating
system write data to it during normal
operation?
Planer
PCH Internal CMOS RAM Battery-backed CMOS RAM No
BIOS Password Battery-backed CMOS RAM Yes
BIOS SPI Flash SPI Flash No
iDRAC SPI Flash
SPI Flash
No
BMC EMMC
eMMC NAND Flash
No
System CPLD RAM RAM No
System Memory DRAM Yes
Internal USB Key Flash Yes
Trusted Platform Module
(TPM, TPM 2.0 only)
EEPROM Yes
CPU Cache + registers Yes
iDRAC DDR
DRAM
No
iDRAC Cache + registers No
Power Supplies
PSU FW
Embedded microcontroller flash
No
12x3.5" Backplane
NVSRAM memory
Flash
No
Flash memory
Flash
No
BP FRU image
I2C EEPROM
No
Expander FRU image
I2C EEPROM
No
H730, H830, H730p PERCs
NVSRAM
NVSRAM
No
FRU
FRU
No
1-Wire EEPROM
1-Wire EEPROM
No
SPD
SPD
No