Dell OptiPlex 7020 (Mid 2014) - Manual

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Statement of Volatility – Dell OptiPlex 7020
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
The Dell OptiPlex 9020 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 7020 motherboard:
Description
Reference
Designator
Volatility Description
User Accessible
for external data
Remedial Action
(action necessary to
lose data)
Embedded
Flash
memory in
embedded
controller
SMSC5555 UO1 96K bytes non-volatile
memory.
2K bytes non-volatile memory
for keyboard controller. No N/A
System
BIOS SPI_1, SPI_3 Non-volatile memory, 64M bits
(8MB), 32Mbits (4MB) System
BIOS and Video BIOS for
basic boot operation, PSA (on
board diagnostics.) No N/A
TPM
UF2 4K bytes non-volatile memory
located in the TPM module. No N/A
System
Memory –
DDR3 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
1GB to 8GB. Yes Power off system.
System
memory
SPD
EEPROM On memory
DIMM(s) – one,
two, three, or
four present Non-volatile EEPROM
memory. 2K bits (256 bytes).
One Device present on each
DIMM.
Stores memory manufacturer
data and timing information for
correct operation of system
memory. No N/A