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Dell Latitude 7424 Rugged Extreme Owner's manual

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Statement of Volatility – Dell Latitude 7424 Rugged Extreme
The Dell Latitude 7424 Rugged Extreme 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
Dell Latitude 7424 Rugged Extreme system boards.
Table 1. List of Volatile, 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)
RTC
CMOS –
BBSRAM
(battery
backed up)
UCPU1 Non-Volatile memory,
256 Bytes
Stores Real Time Clock &
CMOS information
No N/A
System
BIOS
U2800 Non-Volatile memory, 128
Mbit (16 MB), System BIOS
and Video BIOS for basic
boot operation, PSA (on
board diags), PXE diags,
LOM
No N/A
USB Type-
C PD
Controller
U3202 Non Volatile memory, 8Mbit
Stores Type-C PD
Controller application code
No N/A
HDMI
Video
U4202 Non Volatile memory, 2Mbit
Stores HDMI Converter
application code
No N/A
Discrete
GFX Video
BIOS
U6901 Non-Volatile memory, 4Mbit
Stores Discrete GFX
application code and video
BIOS
No N/A
Video
Memory –
Frame
Buffer
U7401,
U7402,
U7501,
U7502
Volatile memory in off
state
2 or 4 GB GDDR5 for
discrete
graphics systems
No N/A
System
Memory –
DDR4
Memory
Two
SODIMM
connectors:
JDIM1,2
Volatile memory in OFF
state
NOTE:
See state definitions later in
text
One to two modules must be
populated. System memory
size
Yes Power off system
CAUTION: A CA
UTION indicates eithe
r p
otential d
amage to hardware or
loss of data and tell s you how to avoid the problem.
Description
Reference
Designator
Volatility Description
User
Accessible
for external
data
Remedial Action
(Action necessary to
prevent loss of data)
will depend on SODIMM
modules and must be
between 4 GB and 32 GB
System
memory
SPD
EEPROM
On System
memory
SODIMM(s)
: 1-2 present
Non-Volatile memory 512
Bytes
Stores memory manufacturer
data and timing information
for correct operation of
system memory
No N/A
Panel
EEDID
EEPROM
Part of panel
assembly
Non-Volatile memory, 512
Bytes
No N/A, Part of panel assembly
Security
EEPROM
Security
Board,
U4701
Non-Volatile memory, 32Mbit
Application code for security
controller
No N/A
Hard
drive(s)
User
replaceable:
One present
Non Volatile magnetic media,
various sizes in GB. May also
be SSD (solid state flash
drive)
Yes
Low level format
PCMCIA
EEPROMs
PCMCIA
Board, U7,
U11
Non-Volatile memory, 2Kbit
Application code for PCMCIA
controllers
No N/A
2
nd
/3
rd
Drive
Controller
EEPROMs
2
nd
/3
rd
Drive
Storage
Option,
U0402,
U0502
Non-Volatile memory,
512Kbit
Application code for
drive controllers
No N/A
CD-
ROM/RW/
DVD/
DVD+RW/
Diskette
Drives
User
replaceable
Non-Volatile optical media Yes Low level format/erase
CAUTION: All other components on the system board lose data if power is removed from the
system. Primary power loss (unplugging the power cord and removing the battery) destroys all
user data on the memory (DDR4, 2400 MHz). Secondary power loss (removing the on-board coin-
cell battery) destroys system data on the system configuration and time-of-day information.
March 2021
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subsidiaries. Other trademarks may be trademarks of their respective owners.
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