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Dell Latitude E6430 ATG (Mid 2012) User Manual

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Statement of Volatility –
Dell E6230/E6330/E6430/E6430ATG/E6530

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

The Dell Latitude™ E6230/E6330/E6430/E6430ATG/E6530 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™ E6230/E6330/E6430/E6430ATG/E6530 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
MEC5055

U51

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

No

N/A

Panel EEDID
EEPROM

Part of LCD
panel
assembly

Non-volatile memory
64K bytes. Stores panel
manufacturing information
and display configuration
data.

No

N/A

System BIOS

U52,U53

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

No

N/A

System
Memory –
DDR3
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 1 GB to 8 GB.

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