Dell Latitude E6440 User Manual

User

Part of panel

Non Volatile memory, 512

No

Part of panel assembly

Non Volatile memory, 32 Mbit

No

N/A

N/A

Two

Volatile memory in OFF state

Yes

Power off system

System

On System

Non Volatile memory 512

No

N/A

Statement of Volatility – Dell Latitude E6440

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

The

Dell Latitude E6440

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
system board.

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

contains both volatile and non-volatile (NV) components. Volatile components lose their data

Dell Latitude E6440

Description

Embedded
Flash in
embedded
controller
MEC5075

Panel
EEDID
EEPROM

System
BIOS

Video
BIOS

System
Memory –
DDR3L
memory

Reference
Designator

Volatility Description

U51 288 KB of embedded Flash

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

assembly

U53

bytes.

(4 MB), System BIOS and
Video BIOS for basic boot
operation, PSA (on board
diagnostics), PXE diagnostics.

Embedded in
system BIOS

Non Volatile memory, 512
kbit (64 KB), Graphics system
BIOS.

SODIMM
connectors:

JDIMM1,2

NOTE: See state definitions later

in text.

One to two modules must be
populated. System memory
size will depend on SODIMM
modules and must be between
2 GB and 8 GB.

Accessible
for external
data

Remedial Action (Action
necessary to prevent loss of
data)

No N/A

No

memory
SPD
EEPROM

June 2013

memory
SODIMM(s)
– 1-2 present

Bytes.
Stores memory manufacturer
data and timing information
for correct operation of system
memory.

Description

User

Hard

User

CD-

User

Reference
Designator

Volatility Description

Accessible
for external
data

Remedial Action (Action
necessary to prevent loss of
data)

RTC
CMOS –
BBRAM
(battery
backed up)

Video
memory –
frame
buffer

Intel ME
Firmware

UH1

For UMA
platform:
Using
system
memory

For E6540
DSC
platform:

UV3, UV4,
UV5, UV6,
UV7, UV8,
UV9, UV10,

For E6440
DSC
platform:

UV3, UV4,
UV5, UV6,

U52

Non Volatile memory,
64 Bytes.

Stores CMOS information.

Volatile memory in off state.

2 GB GDDR5 for discrete
graphics systems.

Non Volatile memory, 32 Mbit
(4 MB), Intel ME firmware for
system configuration, security
and protection

No N/A

No N/A

No N/A

drive(s)

replaceable ­one or two.

Non Volatile magnetic media,
various sizes in GB. May also
be SSD (solid state flash

Yes Low level format

drive).

ROM/RW/

replaceable

Non Volatile optical media. Yes Low level format/erase

DVD/
DVD+RW/
Diskette
Drives

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

______________
© 2013 Dell Inc.

Trademarks used in this text: Dell™, the DELL logo, OptiPlex™ are trademarks of Dell Inc. SMSC is trademark of Standard Microsystems Corp.