Reference Guide

Dell EMC Statement of Volatility
Page 7 of 13
For Dell EMC Customer Use Only
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CPU Module
Table 2 – CPU Module Volatile Memory
CPU Module Volatile Memory
Type (SRAM, DRAM, etc.)
Part Number
Size
User
Modifiable
(Y/N)
Function
Process to Clear
SDRAM (DDR4 2666 @
DIMM 1~24 on CPU
Module)
(317-003-349)
Foxconn
AH98843-A1B1-4M
Up to
1536GB
Y
Caching, pre-fetching blocks for I/O
operations.
Power down
BMC DDR4
@ U1 on CPU Module
(314-721-425)
Micron
MT40A256M16GE-083E:B
4Gb
N
BMC Runtime data and operating
kernel
Power down
BMC SPI SRAM
@ U39 on CPU Module
(314-170-220)
ON SEMICONDUCTOR
N01S830BAT22IT
1Mb
N
BMC SPI Runtime data
Power down
BMC SPI SRAM
@ U40 on CPU Module
(314-170-220)
ON SEMICONDUCTOR
N01S830BAT22IT
1Mb
N
BMC SPI Runtime data
Power down
Table 3 – CPU Module Non-Volatile Memory
CPU Module Non-Volatile Memory
Type (BBRAM, Flash,
EEPROM, etc.)
Part Number
Size
User
Modifiable
(Y/N)
Function
Process to Clear
FLASH
@ U24 on the CPU Module
(316-002-175)
AVNET
W25Q256FVFIG
32MB per
SP
N
Contains BIOS & POST
(Power-On-Self-Test) code.
Cleared when new code level
is applied and original
configuration is destroyed.
FLASH
@ U63 on CPU Module
(316-002-174)
Avnet
W25Q256FVFIG
32MB per
SP
N
Contains code which
controls and monitors
resets, fans, & critical
system environment errors.
Cleared when new code level
is applied and original
configuration is destroyed.
FLASH
@ U56 on CPU Module
(363-000-109)
Winbond
W25Q256FVFIG
32MB per
SP
N
Contains a redundant copy
of code which controls and
monitors resets, fans, &
critical system environment
errors.
Cleared when new code level
is applied and original
configuration is destroyed.
EEPROM
@ U167 on CPU Module
(363-000-084)
Microchip
24LC32AT-I/SN
32Kb
per SP
N
Contains CPU module
resume information.
Cleared when new code level
is applied and original
configuration is destroyed.