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К этому устройству также есть другие инструкции:
Фрагмент инструкции
User
Accessible Remedial Action (Action
Reference
Description
Volatility Description
for
necessary to prevent loss of
Designator
external
data)
data
RTC CMOS
UH4
Non-volatile memory 256 bytes.
No
Remove the on-board
Stores CMOS information.
coin-cel battery.
Video
UMA
Volatile memory in off state.
No
Enter S3-S5 state below.
memory –
architecture
1 GB gDDR5 for discrete
type – see
uses system
graphics systems. UMA uses
next column
DDR3.
main system memory size
Discrete
allocated out of main
graphics
memory.
systems use
gDDR5
(UV3-UV6)
for frame
buffer.
Security
U4 (up-sell USH
Non Volatile memory, 16 Mbit
No
N/A
Controller
daughter board) (2Mbyte).
Serial Flash
Memory
Security
U2 (up-sell
128K byte ROM, 128K bit one-time
No
N/A
Controller
USH daughter
programmable.
board)
TPM
Non Volatile memory, 2K bits
NA
NA
U39
Controller
(256 bytes) ROM.
Hard drive
User
Non-volatile magnetic
Yes
Low-level format
replaceable
media, various sizes in GB.
CD-
User
Non-volatile
Yes
Low-level format/erase
ROM/RW/
replaceable
optical/magnetic media.
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, 1333/1600 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 chipset) 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, Win 2K and Win XP 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. Win 2K and Win XP
support S4 state.
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