Dell Latitude 3450 User Manual

User

Remedial Action (Action

Hard

User

U2302

Non Volatile memory, 64Mbit (8MB), and Video

No

NA
Embedded Non Volatile memory

. To program

No

NA

EEPROM

Part of panel

configuration data

No

NA

System

Two SO-DIMM

Volatile memory in OFF state (see state definitions

Yes

Power off system

System me mo r y

Stores CMOS information

Volatile memory in off state.

E-fuse of

UL1

Statement of Volatility – Dell Latitude 3450

CAUTION: A CAUTION indicat es e ith er po ten ti a l dam age to hardware or loss of data and te lls you how to av oid t he
problem.

The Dell Latitude 3450 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 3440
system board.

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

Description

drive(s)

System BIOS

eDP to VGA
converter

LCD Panel
EEDID

Memory –
DDR3L
memory

SPD EEPROM

Reference
Designator

replaceable ­one

UV6

assembly

connectors:

JDIMM1,
JDIMM2

On memory
SoDIMM(s) – one
or two present

Volatility Description

Non Volatile magnetic media, various

Accessible for
external data

Yes Low level format

necessary to prevent loss of
data)

sizes in GB. May also be SSD (solid
state flash drive).

BIOS for basic boot operation, PSA (on board
diags), PXE diags.

thru the ISP interface.

Non Volatile memory, Stores panel
manufacturing information, display

later in text)

One or both modules will be populated. System
memory size will depend on SO-DIMM modules
and will be between 2GB and 16GB inclusive

Non-Volatile memory 512 bytes. One device present on
each SO-DIMM. S tores memory manufacturer data and
timing information for correct operation of system memory.

No NA

RTC CMOS

Video
memory –
frame buffer

Intel ME
Firmware

Giga-LAN

CAUTION: All other componen ts on t he s yst em boar d l ose da ta if power is removed from the syst em . Primary powe r loss
(unplugging the power cord and rem ovi ng the battery) destroys all user dat a on the memory (D DR3L, 1600 MHz). Secondary power
loss (removing the on-board coin-cell battery) des tr oys sys tem da ta on the system configuration and tim e-of-day information.

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Month yyyy

UC1 (PCH)

For UMA
platform:
Using system
memory

For DSC
platform:

UV17, UV18,
UV19, UV20,

U2302

Non Volatile memory 256 bytes

UMA uses main system memory size allocated out
of main memory.

Non Volatile memory, Intel ME firmware
for system configuration, security and
protection

Volatile memory 256 bytes, Internal OTP
memory (OTP)

No NA

No

No N/A

No NA

Power off system

In addition, to clarify memory volatility and data retention in situations where the system is put in different ACPI

Dell Latitude™ 3450

X

X

X

X

power states the following is provided (those ACPI power states are S0, S3, S4 and S5):

S0 state is the working state where the dynamic RAM is maintained and is read/write by the processo r.
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 peripher al s used in the system supports S3 state. Linux,
Win 7 and Win 8 support S3 state.

S4 is called “suspend to disk” state or “hibernate” mode. There is no power. In this state, the dy nam i c 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 t he
working state, a restore file from the non-volatile st orage can occur. The restore file has to be valid. Dell
systems will be able to go to S4 if the OS and the per i pherals support S4 state. Win 7 and Win 8 support S4
state.

S5 is the “soft” off state. There is no power. The OS does not save any context to wake up the system. No
data will remain in any component on the system board, i.e. cache or memory. The system will require a
complete boot when awakened. Since S5 is the shut off state, coming out of S5 requires power on which
clears all registers.

The following table shows all the states supported by Dell Latitude™ 3440:

Model Number

______________

© 2012 Dell Inc.

Trademarks used in this text: Dell™, the DELL logo, Dell Precision™, OptiPlex™, Latitude™, PowerEdge™, PowerVault™, PowerConnect™,
OpenManage™, EqualLogic™, KACE™, FlexAddress™ and Vostro™ are trademarks of Dell Inc. Intel®, Pentium®, Xeon®, Core™ and Celeron®
are registered trademarks of Intel Corporation in the U.S. and other countries. AMD® is a registered trademark and AMD Opteron™, AMD
Phenom™, and AMD Sempron™ are trademarks of Advanced Micro Devices, Inc. Microsoft®, Windows®, Windows Server®, MS-DOS® and
Windows Vista® are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Red Hat
Enterprise Linux® and Enterprise Linux® are registered trademarks of Red Hat, Inc. in the United States and/or other countries. Novell® is a
registered trademark and SUSE ™ is a trademark of Novell Inc. in the United States and other countries. Oracle® is a registered trademark of Oracle
Corporation and/or its affiliates. Citrix®, Xen®, XenServer® and XenMotion® are either registered trademarks or trademarks of Citrix Systems, Inc.
in the United States and/or other countries. VMware®, Virtual SMP®, vMotion®, vCenter®, and vSphere® are registered trademarks or trademarks
of VMWare, Inc. in the United States or other countries.

S0 S3 S4 S5

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