Dell PowerEdge T20 Dell PowerEdge T20 Statement Of Volatility - Page 2

Table 2. Supported ACPI Power States - motherboard

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CAUTION: All other components on the motherboard will lose data once power is removed from the system. Primary power loss (Unplug the power cord and remove the battery) will destroy all user data on the memory (DDR3, 1600MHz). Secondary power loss (removing the on board coin-cell battery) will destroy 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. Linux and Windows support 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 nonvolatile 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. Windows 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 PowerEdge T20: Table 2. Supported ACPI Power States Model Number S0 S1 S3 S4 S5 Dell PowerEdge T20 X X X X NOTE: For any information that you may need, direct your questions to your Dell Marketing contact. © 2013 Dell Inc. Trademarks used in this text: Dell™ and the DELL logo 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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CAUTION:
All
other components on the motherboard will lose data once power
is
removed from the
system.
Primary
power
loss
(Unplug the power cord and remove
the
battery) will destroy
all
user data on
the
memory (DDR3,
1600MHz).
Secondary power loss (removing
the
on board coin-cell battery) will destroy 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. Linux and
Windows
support 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.
Windows
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 PowerEdge T20
:
Table 2. Supported ACPI Power States
Model
Number
S0
S1
S3
S4
S5
Dell PowerEdge T20
X
X
X
X
NOTE:
For any information that you may need, direct your questions to your Dell Marketing contact.
© 2013 Dell Inc.
Trademarks used in this text: Dell™ and the DELL logo 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.