Setup Guide

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Statement of Volatility – Dell PowerEdge R940xa

Dell PowerEdge R940xa contain both volatile and non-volatile (NV) components. Volatile components lose their data immediately upon removal of power from the

component. Non-volatile components continue to retain their data even after the power has been removed from the component. R9Configuration option information

(pertinent to options such as microprocessors, remote access controllers, and storage controllers) is available by component separately. The following NV components

are present in the PowerEdge R940xa servers.

Item

Type (e.g. Flash PROM, EEPROM)

Can user programs or operating system write data to it during normal operation?

Planer

PCH Internal CMOS RAM

Battery-backed CMOS RAM

BIOS Password

Battery-backed CMOS RAM

Yes

BIOS SPI Flash

SPI Flash

BIOS Recovery SPI Flash

SPI Flash

iDRAC SPI Flash

SPI Flash

BMC EMMC

eMMC NAND Flash

CPU Vcore Regulators

ROM

CPU Vmem Regulators

ROM

System CPLD RAM

RAM

System CPLD FLASH

RAM

System Memory: RDIMM and LRDIMM

DRAM

Yes

System Memory: NVDIMMM-N

Flash – NVDIMM

Internal USB Key

Flash

Yes

CPU

Cache + registers

Yes

iDRAC DDR

DRAM

iDRAC

Cache + registers

PIROM

EEPROM

8x2.5 - inch Backplane

SEP internal flash

Flash

SEP internal EEPROM

EEPROM

Summary of content (3 pages)

PAGE 1
Statement of Volatility – Dell PowerEdge R940xa Dell PowerEdge R940xa contain both volatile and non-volatile (NV) components. Volatile components lose their data immediately upon removal of power from the component. Non-volatile components continue to retain their data even after the power has been removed from the component. R9Configuration option information (pertinent to options such as microprocessors, remote access controllers, and storage controllers) is available by component separately.
PAGE 2
Item Type (e.g. Flash PROM, EEPROM) Can user programs or operating system write data to it during normal operation? x32 Config: 24x2.5 - inch SAS EXP/Backplane + 8x2.
PAGE 3
Item Type (e.g. Flash PROM, EEPROM) Can user programs or operating system write data to it during normal operation? Right Ear SPI Flash SPI Flash No TPM Trusted Platform Module (TPM) EEPROM Yes ACE (IDSDM - vFlash) vFlash (uSD) NAND flash yes iDSDM (uSD1, uSD2) NAND Flash SPI Flash SPI Flash Yes SPI flash is only indirectly connected to iDRAC. iDRAC can read any address in the SPI flash, but may only write the primary firmware storage area as a part of a firmware update procedure.