Dell Latitude 12 Rugged Extreme (7204) User's Guide

Statement of Volatility – Dell LATITUDE 12 RUGGED EXTREME CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. The Dell LATITUDE 12 RUGGED EXTREME 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 12 RUGGED EXTREME system board. Table 1. List of Non-Volatile Components on System Board

Remedial Action (Action

Reference Accessible

Description Volatility Description necessary to prevent loss of

Designator for external

data)

Embedded U38 256K and 2K byte of No N/A

Flash in embedded Flash memory for embedded embedded controller BIOS controller code, asset tag and BIOS MEC5075 passwords

Panel Part of panel Non Volatile memory 64K No Part of panel assembly

EEDID assembly bytes. Stores panel EEPROM manufacturing information,

display configuration data

System U1,U2 Non Volatile memory, 64Mbit No N/A

BIOS (8MB), 32Mbit (4MB) System

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

System Connectors Volatile memory in OFF state Yes Power off system

Memory – JDIMM1 (see state definitions later in DDR3L and text) One or both modules will memory JDIMM2 be populated. System memory

size will depend on So DIMM modules and will be between 1GB and 8GB

System On System Non-Volatile memory 2Kbit No N/A

memory memory (256 bytes). One device present on each So DIMM.

SPD SODIMM(s)

Stores memory manufacturer

EEPROM – one or two

data and timing information

present

for correct operation of system memory.

RTC UC1 Non Volatile memory 256 No N/A

CMOS – bytes. Stores CMOS BBRAM information (battery backed up)

Video UMA UMA uses main system No N/A memory – architecture- memory size allocated out of frame uses main memory.

buffer system

DDR3L.

DP hub U7 Non Volatile memory for DP No N/A FW hub Firmware TPM U25 Non Volatile memory, 2K bits No N/A Controller (256 bytes) ROM

July 2014