Which ACPI power state provides power to the CPU and RAM, but powers down unused devices?

Last Updated on March 24, 2021 by Admin

Which ACPI power state provides power to the CPU and RAM, but powers down unused devices?

  • S3
  • S4
  • S1
  • S0
  • S2
    Answers Explanation & Hints:

    The Advanced Configuration and Power Interface (ACPI) standard provides support for power states that are very important to mobile devices such as laptops.

    • S0 – The computer is on and CPU running.
    • S1 – CPU and RAM have power, but unused devices are powered down.
    • S2 – CPU is off; RAM is refreshed.
    • S3 – CPU is off; RAM is set to a slow refresh rate.
    • S4 – CPU and RAM are off (and RAM contents saved to a temp file).
    • S5 – The computer is off.
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