Reference Guide

Item
Non-
Volatile or
Volatile
Quantity
Reference
Designator
Size of
memory
Type of
memory
(e.g. Flash
PROM,
EEPROM)
Can user programs
or operating
system write data
to it during normal
operation?
What is the
Purpose?
(e.g. boot
code)
How is data
written to
this
memory?
How is
memory write-
protected?
How is memory
cleared?
iDRAC
Volatile
1
U_BMC1
For CPU:
128 KB +
Registers
Co-proc: 64
Kb +
Registers
Cache +
registers
No
Processor
cache +
registers
iDRAC
Firmware
Not write-
protected
Remove A/C
PIROM
Non- Volatile
1
CPU1
256 Bytes
EEPROM
No
Processor info
+ scratchpad
SMBus
interface to
iDRAC
Out of 256
bytes, 128
bytes are
protected by
Intel. The other
128 bytes are
not write-
protected.
User cannot clear the
memory.
Recovery BIOS
SPI
Non- Volatile
1
U_REC_SPI_
BIOS1
16 MB
SPI Flash
No
Recovery image
SPI interface
via iDRAC
Not write-
protected.
User cannot clear the
memory.
LOM SPI
Non-Volatile
1
U_LOM_SPI1
8 Mb
SPI Flash
No
LOM FW
Pre-
programmed
before
assembly.
Can be
updated using
Dell/ BRCM
tools
Not write-
protected.
User cannot clear the
memory.