Dell Latitude E6430 ATG User Manual
Statement of Volatility –
Dell E6230/E6330/E6430/E6430ATG/E6530
Description
Reference
Designator
Volatility Description
User
Accessible
for
external
data
Remedial Action (Action
necessary to prevent loss of
data)
Part of LCD
Non-volatile memory
No
N/A
Non-volatile memory,
No
N/A
System
On memory
Non-volatile memory 2Kbit
No
N/A
CAUTION: A CAUTION indicat es either pot ent i a l damage to h ar dware 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
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
System BIOS U52,U53
System
Memory –
DDR3
memory
memory
SPD
EEPROM
panel
assembly
Connectors
JDIMMA and
JDIMMB
SoDIMM(s) –
one or two
present
64K bytes. Stores panel
manufacturing information
and display configuration
data.
64Mbit (8 MB), 32Mbit (4 MB)
System BIOS and Video BIOS
for basic boot operation, PSA
(on board diags), PXE diags.
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.
(256 bytes). One device
present on each SoDIMM.
Stores memory
manufacturer data and
timing information for
correct operation of system
memory.
Yes Power off system
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Description
Reference
Designator
Volatility Description
User
Accessible
for
external
data
Remedial Action (Action
necessary to prevent loss of
data)
RTC CMOS UH4
Memory
Non Volatile memory, 2K bits
NA
NA
CD-
User
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
(DDR3, 1333/1600 MHz). Secondary power loss (removing the on-board coin-cell battery) destroys system data
on the system configuration and time-of-day information.
Non-volatile memory 256 bytes.
Stores CMOS information.
No
Remove the on-board
coin-cell battery.
Video
memory –
type – see
next column
Security
Controller
Serial Flash
Security
Controller
TPM
Controller
Hard drive User
ROM/RW/
DVD/
DVD+RW/
Diskette
Drives
UMA
architecture
uses system
DDR3.
Discrete
graphics
systems use
gDDR5
(UV3-UV6)
for frame
buffer.
U4 (up-sell USH
daughter board)
U2 (up-sell
USH daughter
board)
U39
replaceable
replaceable
Volatile memory in off state.
1 GB gDDR5 for discrete
graphics systems. UMA uses
main system memory size
allocated out of main
memory.
Non Volatile memory, 16 Mbit
(2Mbyte).
128K byte ROM, 128K bit one-time
programmable.
(256 bytes) ROM.
Non-volatile magnetic
media, various sizes in GB.
Non-volatile
optical/magnetic media.
No
No N/A
No N/A
Yes Low-level format
Yes Low-level format/erase
Enter S3-S5 state below.
In addition, to clarify memory volatility and data retention in situations where the system is put in different ACPI power states, the
following is provided (those ACPI power states are S0, S1, S3, S4, and S5):
S0 state is the working state where the dynamic RAM is maintained and is read/write by the processor.
S1 state is a low wake-up latency sleeping state. In this state, no system context is lost (CPU or chipset) and hardware maintains all
system contexts.
S3 is called “suspend to RAM” state or stand-by mode. In this state, the dynamic RAM is maintained. Dell systems will be able to go to S3
if the OS and the peripherals used in the system supports S3 state. Linux, Win 2K and Win XP support S3 state.
S4 is called “suspend to disk” state or “hibernate” mode. There is no power. In this state, the dynamic RAM is not maintained. If the
system has been commanded to enter S4, the OS will write the system context to a non-volatile storage file and leave appropriate
context markers. When the system is coming back to the working state, a restore file from the non-volatile storage can occur. The
restore file has to be valid. Dell systems will be able to go to S4 if the OS and the peripherals support S4 state. Win 2K and Win XP
support S4 state.
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