Dell POWEREDGE R620 User Manual
Page 3
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)
Planer
PCH Internal CMOS RAM
Battery-backed CMOS
RAM
No
Real-time clock and BIOS
configuration settings
BIOS SPI Flash
SPI Flash
No
Boot code, system
configuration information,
UEFI environment, Flash
Disceptor, ME
iDRAC SPI Flash
SPI Flash
No
iDRAC Uboot
(bootloader), server
managent persistent store
(i.e. IDRAC MAC Address,
iDRAC boot variables),
lifecycle log cache, virtual
planar FRU and EPPID,
rac log, System Event
Log, JobStore, iDRAC
Secure Boot Code,
BMC EMMC
eMMC NAND Flash
No
Operational iDRAC FW,
Lifecycle Controller (LC)
USC partition, LC service
diags, LC OS drivers, USC
firmware
CPU Vcore and VSA
Regulators
OTP(one time
programmable)
No Operational
parameters
System CPLD RAM
RAM
No
Not utilized
System Memory
RAM
Yes
System OS RAM
Internal USB Key
Flash
Yes
General purpose USB key
drive
Trusted Platform Module (TPM)
EEPROM
Yes
Storage of encryption keys
Power Supplies
PSU FW
Embedded
microcontroller flash
No Power
Supply
operation,
power management data
and fault behaviors
4x2.5" Backplane
SEP internal flash
Integrated
Flash+EEPROM
No
Firmware + FRU
8x2.5" Backplane
SEP internal flash
Integrated
Flash+EEPROM
No
Firmware + FRU
10x2.5" Backplane