Dell OptiPlex 9020 AIO Statement of Volatility
Summary
This statement of volatility document for the Dell OptiPlex 9020 AIO details volatile and non-volatile components on the system board. It covers embedded flash memory, system BIOS, DDR3 memory, media card reader, TPM module, and RTC CMOS memory. The document is intended for security professionals and compliance auditors who need to understand data retention characteristics and remedial actions when servicing or decommissioning the system.
Page 1 Text Content
Statement of Volatility – Dell Optiplex 9020 AIO CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. The Dell Opti Plex 9020 AIO contains both volatile and non-volatile (NV) components. Volatile components lose their data immediately after power is removed from the component. Non-volatile (NV) components continue to retain their data even after power is removed from the component. The following NV components are present on the Opti Plex 9020 AIO system board. Table 1. List of Non-Volatile Components on System Board
Remedial Action (Action
Reference Accessible
Description Volatility Description necessary to prevent loss of
Designator for external
data)
U9425 96K bytes non-volatile memory.
Embedded No N/A
2K bytes of on-chip ROM for
Flash in
embedded keyboard controller 256 bytes of
controller on-chip RAM. SMSC5555
U29 Non-volatile memory, 1024 No N/A
Panel EDID
bytes.
& setting in e DP converter IC
Non Volatile memory, 64 Mbit No N/A
System J131,
(8 MB) & 32 Mbit (4 MB),
System BIOS and Video BIOS for basic boot operation, PSA (on board diags), PXE diags.
Two Volatile memory in OFF state Yes Power off system
System
SODIMM One to two modules must be
Memory –
DDR3 connectors: populated. System memory
memory size will depend on SODIMM
XMM1,3 modules and must be between
2 GB and 16 GB.
Media Card One media Non Volatile memory Yes N/A
card slot:
SD/MS/MM
System On System Non Volatile memory 512 No N/A memory memory Bytes. SPD SODIMM(
EEPROM s) – 2 Stores memory manufacturer present data and timing information for correct operation of system memory.
TPM U9421 4K bytes non-volatile memory No N/A
located in the TPM module.
RTC CMOS Battery Volatile battery back-backed No Removing the on board Coin Cell
CMOS memory 256 bytes. Stores battery. CMOS information.
June 2013
Page Summary Contents For Dell OptiPlex 9020 AIO Statement of Volatility
Manual Details
| Brand | Dell |
|---|---|
| Pages | 2 |
| File Size | 36.50 KB |
| Published | June 29, 2026 |
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Frequently Asked Questions
What components lose data immediately when power is removed?
Volatile components lose their data immediately after power is removed.
Does removing the primary power source erase all user memory data?
Yes, unplugging the power cord and removing the battery destroys all user data on the DDR3 memory.
Which types of media storage are considered non-volatile?
Non-volatile components include embedded flash memory, system BIOS/Video BIOS, TPM modules, and connected hard drives or optical media.
How much does a typical OptiPlex 9020 AIO memory capacity range from?
The DDR3 memory size must be between 2 GB and 16 GB, depending on the installed SODIMM modules.