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Dell Latitude E7440 (Mid 2013) User Manual

Dell Notebooks

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Statement of Volatility – Dell Latitude E7240/E7440

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

The Dell Latitude E7240/E7440 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 E7240/E7440’s
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

Embedded Flash
memory in
embedded
controller
MEC5075

U38

256K and 2K byte of embedded
Flash memory for embedded
controller BIOS code, asset tag and
BIOS passwords

No

N/A

Panel EDID
EEPROM

Part of LCD panel
assembly

Non Volatile memory 64K bytes.
Stores panel manufacturing
information, display configuration
data

No

N/A

System BIOS

U1,U2

Non Volatile memory, 64Mbit
(8MB), 32Mbit (4MB) System BIOS
and Video BIOS for basic boot
operation, PSA (on board diags),
PXE diags.

No

N/A

System Memory –
DDR3L memory

Connectors
JDIMMA and
JDIMMB

Volatile memory in OFF state (see
state definitions later in text) One or
both modules will be populated.
System memory size will depend on
SoDIMM modules and will be
between 1GB to 8GB

Yes

Power off
system

System memory
SPD EEPROM

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.

No

N/A

RTC CMOS

UC1

Non Volatile memory 256 bytes
Stores CMOS information

No

Remove the on-
board coin cell
battery

Video memory –
type – see next
column

UMA
architecture- uses
system DDR3L.

Volatile memory in off state. UMA
uses main system memory size
allocated out of main memory.

No Enter S3-S5
state below.

Security Controller
Serial Flash
Memory

U4 (up-sell USH
daughter board)

Non Volatile memory, 16 Mbit
(2Mbyte)

No

NA