Reference Guide

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DELL CONFIDENTIAL Page 1
Dell Customer Communication - Confidential
Date: Apr 26, 2019
Subject: Statement of Volatility – Dell OptiPlex 7070_MFF
To whom it may concern:
The Dell OptiPlex 7070_MFF contains 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. The following volatile and NV
components are present on the Dell OptiPlex 7070_MFF motherboard:
Description
Reference
Designator
Volatility Description
User Accessible
for external data
Remedial Action
(action necessary to
lose data)
Embedded
Flash memory in
embedded
controller SMSC
SCH5555-NU
U104
2K Bytes of on-chip ROM
and 256 Bytes of on-chip
RAM
No
N/A
System BIOS
U9435
Non-volatile memory,
256Mbits(32MB), System
BIOS and Video BIOS for
basic boot operation, ePSA
(on board diagnostics.)
No
N/A
TPM Nuvoton
NPCT750JABYX
U7201
24K bytes non-volatile
memory located in the TPM
module.
No
N/A
System Memory
– DDR4 DIMM
memory
Connectors:
DIMM1, DIMM2,
Volatile memory in OFF
state (see state definitions
later in text)
One to two modules will be
populated. System memory
size will depend on DIMM
modules and will be
between 4GB to 32GB.
Yes
Power off system.
System memory
SPD EEPROM
On memory
DIMM(s)
Non-volatile EEPROM
memory. 512 bytes. One
Device present on each
DIMM. Stores memory
manufacturer data and
timing information for correct
operation of system
memory.
No
N/A
RTC CMOS
BATTERY
Volatile battery back-backed
CMOS memory 256 bytes.
Stores CMOS information.
No
Removing the on
board Coin Cell
battery.