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?
Expander FRU
Non-
Volatile
1
U_EXP_FR
U1
512 Bytes
I2C EEPROM
No
FRU
I2C
interface
via
expander
Hardware
strapping
User cannot clear.
Backplane
FRU
Non-
Volatile
4
U_BP_FRU
1,
U_BP_FRU
2,
U_BP_FRU
3,
U_BP_FRU
14
256 Bytes
I2C EEPROM
No
FRU
I2C
interface
via iDRAC
Hardware
strapping
User cannot clear.
12x3.5"
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.
Chassis Manage Board
Controller
internal flash
Non-
Volatile
1
U_MCU1
Flash:256
KB+256K
B
SRAM:
136KB
Integrated
Flash+SRAM
No
Firmware
I2C
interface
via iDRAC
No write
protect
User cannot clear.