Dell PowerEdge T430 User Manual

Page 6

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)

IDSDM

SPI Flash

Exclusively used by
the controller

MCU

Embedded Flash

Yes

Firmware

TPM

Trusted Platform Module
(TPM)

EEPROM

Yes

Storage of
encryption keys

Item

How is data input to this
memory?

How is this memory
write protected?

How is the memory cleared?

Planar

PCH Internal
CMOS RAM

BIOS

N/A – BIOS only
control

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.

BIOS Password

Keyboard

N/A

Place shunt on J_PSWD_NVRAM jumper
pins 2 and 4.

BIOS SPI Flash

SPI interface via iDRAC

Software write
protected

Not possible with any utilities or
applications and system is not functional
if corrupted/removed.

iDRAC SPI Flash

SPI interface via iDRAC

Embedded iDRAC
subsystem firmware
actively controls sub
area based write
protection as needed.

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

BMC EMMC

NAND Flash interface via
iDRAC

Embedded FW write
protected