Dell Latitude 3540 User Manual

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Statement of Volatility – Dell Latitude 3540

CAUTION:

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The Dell Latitude 3540 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 Latitude 3540 system board.

Table 1. List of Non-Volatile Components on System Board

Description

Embedded
Flash in
embedded
controller
KB9012

A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

Reference
Designator

Volatility Description

UE1 128K byte of

User
Accessible
for external
data

No NA

Remedial Action (Action
necessary to prevent loss of
data)

embedded Flash
memory for keyboard
controller BIOS code,
asset tag and BIOS
passwords

Panel
EEDID
EEPROM

Part of panel
assembly

Non Volatile memory,
128 bytes.
Stores panel

No NA

manufacturing
information, display
configuration data

System
BIOS

System
Memory –
DDR3L
memory

September 2013

U2302 Non Volatile memory,

64Mbit (8MB),System
BIOS and Video BIOS
for basic boot
operation, PSA (on
board diags), PXE
diags.

Two Sodimm
connectors:

Volatile memor y in
OFF state (see state
definitions later in text)

JDIMM1,
JDIMM2

One or both modules
will be populated.
System memory size
will depend on
Sodimm modules and
will be between 2GB
and 8GB inclusive

No NA

Yes Power off system

Description

Reference
Designator

Volatility Description

User
Accessible
for external
data

Remedial Action (Action
necessary to prevent loss of
data)

System
memory
SPD
EEPROM

RTC
CMOS-
BBRAM
(battery
backed up)

Video
memory –
frame
buffer

On memory
SoDIMM (s) –
one or two
present

Non-Volatile memory
2Kbit (256 bytes). One
device present on
each SoDIMM. Stores
memory manufacturer
data and timing
information for correct
operation of system
memory.

UC1 Non Volatile memory

256 bytes
Stores CMOS
information

UMA
architecture-

Volatile memor y in of f

state.
uses system
DDR3L.

UMA uses main

system memory size
DIS
architecture-

allocated out of main

memory.
uses on board
GDDR5 2GB
(UV3,UV4,UV5

DIS uses on board

2GB GDDR5.
,UV6,UV7,UV8

,UV9,UV10)

No NA

No NA

No Power off

Hard
drive(s)

User
replaceable(JH
DD)

Non Volatile magnetic

media, various sizes

in GB. May also be

Yes Low level format

SSD (solid state flash

drive)

CD­ROM/RW/

User
replaceable

Non Volatile optical

media.

Yes Low level format/erase

DVD/
DVD+RW/
Diskette
Drives

CAUTION:

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(unplugging the power cord and removing the battery) destroys all user data on the memory (DDR3, 1067 MHz). Secondary
power loss (removing the on-board coin-cell battery) destroys system data on the system configuration and time-of-day
information.

All other components on the system board lose data if power is removed from the system. Primary power loss