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12
December 2020
Statement of Volatility – Dell OptiPlex 5080 Tower
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
The Dell OptiPlex 5080 Tower contains both volatile and non-volatile 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 5080 Tower motherboard:
List of Non-Volatile Components on System Board
Description
Reference
Designator
Volatility Description
User Accessible for
external data
Remedial Action (Action
necessary to prevent
loss of data)
Embedded
Flash memory
in embedded
controller SMSC
SCH5553V-NU
U5
2K bytes of on-chip ROM and 256 bytes of on-chip
RAM
No
N/A
Type C Port
controller
Cypress
CYPD4125-
40LQXIT
U3451
128K bytes of on-chip Flash and 8K bytes SRAM
No
N/A
System BIOS
U8
32M bytes non-volatile memory, system BIOS and
video BIOS for basic boot operation, ePSA (on
board diagnostics.)
No
N/A
TPM
Nuvoton
NPCT750JAAYX
U48(Nuvoton)
24K bytes non-volatile memory located in Nuvoton
TPM.
No
N/A
System
Memory –
DDR4 DIMM
memory
Connectors:
DIMM1, DIMM2,
DIMM3, DIMM4.
Volatile memory in off state (see state definitions
later in text)
One to four modules will be populated. System
memory size will depend on DIMM modules and
will be between 4GB to 64GB.
Yes
Power off system.
System memory
SPD EEPROM
On memory
DIMM(s)
256 bytes non-volatile EEPROM memory. 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.
Video memory
– type – see
next column
UMA architecture-
uses system
memory.
Volatile memory in off state.
UMA uses main system memory size allocated out
of main memory.
No
Enter S3-S5 state below.

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