letter of volatility
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DEWE3-M4 • Technical reference • Printing version 1.0.1 • August 25, 2022
Letter of volatility
The data storage capacity of the DEWE3-A4 can be extended by the SSD-256V-1T-EL option to 1 TB. The following chart
corresponds to the memory types that are used within the DEWE3-A4 systems.
Volatile memory
Type
Size
User modifiable
Function
Process to delete
Innodisk M4SS,
DDR4 SODIMM
16 GB module
(16x 1 GB chips) Yes
RAM
Power off
Intel i7 6820EQ,
cache
8 MB
No
Cache
Power off
Chassis Controller
DDR3
512 MB
Yes
Buffer for measurement
data
Power Off
Tab. 17: Volatile memory
Non-volatile memory
Type
Size
User modifiable
Function
Process to delete
Innodisk 3MG2-P,
Solid State Drive
256 GB + cache Yes
Main drive for operating sys
-
tem, programs and drivers
Remove drive or DoD
5220.22-M wiping
Innodisk 3MG2-P,
Solid State Drive
1 TB + cache
Yes
Data drive
Remove drive or DoD
5220.22-M wiping
BIOS Chip EEPROM
16 MB
Yes
BIOS Settings, firmware
Factory reset
EC EEPROM
64 kB
No
Fan control settings, Firm
-
ware
n.a.
Display EEPROM
8 kB
No
Display Settings
n.a.
Flash
16 MB
Read only, yes under
certain circumstances
Chassis controller firmware
DEWETRON Explorer
firmware update
EEPROM
8 kB
No
PTP configuration
n.a.
Tab. 18: Non-volatile memory
