Reference Guide

Item
Non-
Volatile or
Volatile
Quantity
Reference
Designator
Size
Type (e.g.
Flash PROM,
EEPROM)
Can user programs
or operating
system write data
to it during normal
operation?
Purpose?
(e.g. boot
code)
How is
data input
to this
memory?
How is this
memory
write
protected?
How is the memory
cleared?
Recovery
BIOS SPI
Non-
Volatile
1
U_REC_SP
I_BIOS
16 MB
SPI Flash
No
Recovery
image
SPI
interface
via iDRAC
No write
protect
User cannot clear.
24x2.5" Without NVME support Backplane
SEP internal
flash
Non-
Volatile
4
U5_SEP,
U6_SEP,
U7_SEP,
U8_SEP
Flash: 32
KB+4 KB
EEPROM:
2 KB
Integrated
Flash+EEPR
OM
No
Firmware +
FRU
I2C
interface
via iDRAC
Program write
protect bit
User cannot clear.
24x2.5" With NVME support Backplane
SEP internal
flash
Non-
Volatile
4
U5_SEP,
U6_SEP,
U7_SEP,
U8_SEP
Flash: 64
KB+4 KB
EEPROM:
2 KB
Integrated
Flash+EEPR
OM
No
Firmware +
FRU
I2C
interface
via iDRAC
Program write
protect bit
User cannot clear.
24x2.5" EXP/Backplane
NVSRAM
Memory
Non-
Volatile
1
U_3
1 MB
Flash
No
FW config data
Common
Flash
memory
Interface
(CFI)
Hardware
strapping
User cannot clear.
Flash Memory
Non-
Volatile
1
U_2
128 MB
Flash
No
Firmware
Common
Flash
memory
Interface
(CFI)
Hardware
strapping
User cannot clear.