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ManualsBrandsDell Manuals3000 SeriesLatitude 5290 2-in-1
12
Jan 2020
Statement of Volatility – Dell Latitude 5x90 2in1
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
The Dell 5x90 2in1 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 5x90 system board.
Table 1. 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 in
embedded
controller
MEC5105
UE1
320KBof SRAM & 64KB ROM
for keyboard controller BIOS
code, asset tag and BIOS
passwords
No
N/A
Panel
EEDID
EEPROM
Part of panel
assembly
Non-Volatile memory, 128
bytes.
No
Part of panel assembly
System
BIOS
UC5
Non-Volatile memory, 128 M
bits (16 MB), System BIOS and
Video BIOS for basic boot
operation, PSA (on board
diags), PXE diags.
No
N/A
System EC
ROM
UE9
Non-Volatile memory 8M bits,
for EC operation
No
N/A
System
Memory –
DDR4
memory
One
SODIMM
connectors:
JDIMM1,
JDIMM2
Volatile memory in OFF state
NOTE:
See state definitions later in
text.
Two modules will be populated.
System memory size will depend
on Sodimm modules and will be
between 4GB and 16GB inclusive
Yes
Power off system
System
memory
SPD
EEPROM
On System
memory
SODIMM(s)
JDIMM1,2
present
Non-Volatile memory 2K bits (256
bytes). One device present on
each SoDIMM. Stores memory
manufacturer data and timing
information for correct operation of
system memory.
No
N/A
RTC
CMOS –
BBRAM
(battery
backed up)
UE1
Non-Volatile memory, 256
Bytes.
Stores CMOS information in
PCH.
No
Remove the onboard
coin cell
battery
Hard
drive(s)
User
replaceable -
Non-Volatile magnetic media,
various sizes in GB. May also
be SSD (solid state flash drive).
Yes
Low level format
Video
memory –
For UMA
platform:
Volatile memory in off state.
No
No Enter S3-S5

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