Dell OptiPlex 3011 AIO Manuale utente

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Statement of Volatility – Dell OptiPlex 3011AIO

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

problem.

The Dell OptiPlex 3011 AIO 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 OptiPlex 3011 AIO’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

to lose data)

Embedded

Flash memory

in embedded

controller

SMSC

SCH5555

U20

Non Volatile:8042 Controller: 2k

Bytes of Program ROM

MCU ROM: 96K Bytes of Program

ROM

Volatile: 8042 Controller:

256k Bytes of Data RAM

MCU ROM: 8k Bytes of Data RAM

N/A

System BIOS

U18+U22

Non Volatile memory,

64Mbit+32Mbit (8MB+4MB),

System BIOS and Video BIOS for

basic boot operation, PSA (on board

diags.)

N/A

Ethernet

Controller

Embedded

Efuse

REALTEK

RTL8151GD

U25

256 bytes in non-volatile memory,

which stores driver information and

the system MAC address

N/A

System

Memory –

DDR3 DIMM

memory

Connectors :

DIMM1, DIMM2

Volatile memory in OFF state (see

state definitions later in text)

One or two modules will be

populated. System memory size

will depend on DIMM modules and

will be between 2GB to 4GB.

Power off system

System

memory SPD

EEPROM

On memory

DIMM(s) – one,

two, three, or four

present

Non-Volatile EEPROM memory.

2Kbit (256 bytes) One Device

present on each DIMM.

Stores memory manufacturer data

and timing information for correct

operation of system memory.

N/A

Description Reference

Designator Volatility Description

User

Accessible for

external data

Remedial Action

(action necessary

to lose data)

RTC CMOS

BATTERY

Volatile Battery back-backed

CMOS memory 256 bytes

Stores CMOS information

Removing the on board

Coin Cell battery

Video memory

– type – see

next column

UMA architecture-

uses system

DDR3.

Volatile memory in off state.

UMA uses main system memory

size allocated out of main memory.

Enter S3-S5 state

below.

GPU

architecture-

gDDR3.

Volatile memory in off state.

GPU uses only. Four modules will

be populated. System memory size

is 1 GB.

Enter S3-S5 state

below.

Hard drive

User replaceable

Non Volatile magnetic media,

various sizes in GB

Yes

Low level format

CD-ROM/RW/

DVD/

DVD+RW/

Diskette Drives

User replaceable

Non Volatile optical/magnetic

media

Yes

Low level format /

erase

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.

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 chip set) 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.

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.

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 OptiPlex 3011 AIO:

Model Number S0 S1 S3 S4 S5

Dell OptiPlex

3011

______________

Trademarks used in this text: Dell™, the DELL logo, OptiPlex™ are trademarks of Dell Inc. Intel®, Pentium®, Xeon®, Core™ and Celeron® are

registered trademarks of Intel Corporation in the U.S. and other countries. Microsoft®, Windows® are either trademarks or registered trademarks of

Microsoft Corporation in the United States and/or other countries.

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