Dell Latitude E7240 (Mid 2013) - Manual

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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