Dell PowerEdge External Media System 1434 Manual page 8

Item
Planer
PCH Internal CMOS RAM
BIOS SPI Flash
iDRAC SPI Flash
BMC EMMC
CPU Vcore and VSA
Regulators
System CPLD RAM
System Memory
Internal USB Key
Trusted Platform Module
(TPM)
Power Supplies
PSU FW
8x2.5" Backplane
SEP internal flash
How is this memory write
protected?
N/A – BIOS only control
Software write protected
Embedded iDRAC
subsystem firmware
actively controls sub area
based write protection as
needed.
Embedded FW write
protected
There are passwords for
different sections of the
register space
Not accessible
OS Control
No write protect
SW write protected
Protected by the
embedded microcontroller.
Special keys are used by
special vendor provided
utilities to unlock the ROM
with various CRC checks
during load.
Program write protect bit
How is the memory cleared?
1) Set NVRAM_CLR jumper to clear BIOS
configuration settings at boot and reboot system;
2) AC power off system, remove coin cell battery
for 30 seconds, replace battery and power back
on; 3) restore default configuration in F2 system
setup menu.
Not possible with any utilities or applications and
system is not functional if corrupted/removed.
Not completely user clearable; however, user
data, lifecycle log and archive, SEL, fw image
repository can be cleared via Delete Configuration
and Retire System, accessible in Lifecycle
Controller interface
Not completely user clearable; however, user
data, lifecycle log and archive, SEL, fw image
repository can be cleared via Delete Configuration
and Retire System, accessible in Lifecycle
Controller interface
Not user clearable
Not accessible
Reboot or power down system
Can be cleared in system OS
F2 Setup option
Not clearable
Not user clearable