Does S3 sleep work in Windows 11?


jimhoyle

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There are many discussions elsewhere about "Modern Standby", aka "Modern Sleep", "S0ix", "S0 Low Power Idle". It's all about nobody understanding why Microsoft forces that and doesn't allow the good and old S3 Sleep mode. In short, a computer in the S0ix mode will run extremely hot while in sleep, especially when in a laptop bag.

Could somebody (preferably a few) confirm if their computer (laptop) allows the old S3 Sleep in Windows 11? Which means USB keyboard/mouse wakeup works (also Wake-On-LAN works), opening the laptop lid wakes the computer, computer creates no heat while in sleep, typing "powercfg a" in a command prompt shows that S3 is available.

If you have those working, could you also mention your computer model and exact Windows version. And if you had to tweak things to get S3, what did you do?
 

My Computer

System One

  • OS
    Windows 10 (on 10/2021)

Bree

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Could somebody (preferably a few) confirm if their computer (laptop) allows the old S3 Sleep in Windows 11? Which means USB keyboard/mouse wakeup works (also Wake-On-LAN works), opening the laptop lid wakes the computer, computer creates no heat while in sleep, typing "powercfg a" in a command prompt shows that S3 is available.

If you have those working, could you also mention your computer model and exact Windows version. And if you had to tweak things to get S3, what did you do?
Welcome to Eleven Forum

Windows 11 is no different from Windows 10 in regards to Modern Standby. It's not up to the OS, it's all down to the PC's hardware. If the PC's motherboard, bios and hardware support Modern Standby, then Windows will use it. Only if the PC's hardware does not support Modern Standby will S3 be available. Whether that S3 will wake on some or all events that you list is also make/model/bios dependant - some do, some don't.

My System One in 'My Computers' below this post is a fully W11 compatible PC, but its hardware does not support Modern Standby. Here is it's 'powercfg -a' (its Windows 11 version is shown on first line, 22000.282).

1635025734080.png

My other fully W11 compatible PC is a Dell Latitude 5410 which does have Modern Standby. The system firmware does not support S3.

1635025972565.png
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB HDD
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
    Motherboard
    0T6M8G
    Memory
    4GB
    Screen Resolution
    1366x768
    Hard Drives
    500GB HDD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.

Bree

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It's all about nobody understanding why Microsoft forces that and doesn't allow the good and old S3 Sleep mode. In short, a computer in the S0ix mode will run extremely hot while in sleep, especially when in a laptop bag.

Connected Standby (S0) has been around since Windows 8. New for Windows 10 MS added the ability to turn off network connectivity while in S0, thus reducing the power consumption.

 

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB HDD
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
    Motherboard
    0T6M8G
    Memory
    4GB
    Screen Resolution
    1366x768
    Hard Drives
    500GB HDD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.

hdmi

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Yes, it works for me. Medion S15450 with an Intel Core i5-1135G7 running on Windows 11 Home x64 version 21H2 build 22000.282. All I had to do was run
Code:
reg add HKLM\System\CurrentControlSet\Control\Power /v PlatformAoAcOverride /t REG_DWORD /d 0 /f
from an elevated command prompt and reboot after.
 

My Computer

System One

  • OS
    11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Medion S15450
    CPU
    i5 1135G7
    Memory
    16GB DDR4
    Graphics Card(s)
    Intel Iris Xe
    Sound Card
    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
    Monitor(s) Displays
    Sony Bravia XR-55X90J
    Screen Resolution
    3840×2160
    Hard Drives
    2TB SSD internal
    37TB external
    PSU
    Li-ion
    Keyboard
    Logitech K800
    Mouse
    Logitech G402
    Internet Speed
    20Mbit/s up, 200Mbit/s down
    Browser
    FF

jimhoyle

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OS
Windows 10 (on 10/2021)
Yes, it works for me. Medion S15450 with an Intel Core i5-1135G7 running on Windows 11 Home x64 version 21H2 build 22000.282. All I had to do was run
Code:
reg add HKLM\System\CurrentControlSet\Control\Power /v PlatformAoAcOverride /t REG_DWORD /d 0 /f
from an elevated command prompt and reboot after.
Thanks that's very good to know. My problematic computer is HP ZBook Studio 15 G7 (HP ZBSG7). When trying that trick, the sleep function crashes. Just black screen, very difficult to turn on/off the computer. After 1 minute of pushing and holding the power button several times, the computer switches on again. When that trick is in use, "powercfg a" claims S3 is available, but it behaves as mentioned, so it doesn't work for this computer.
 

My Computer

System One

  • OS
    Windows 10 (on 10/2021)

jimhoyle

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Windows 10 (on 10/2021)
Windows 11 is no different from Windows 10 in regards to Modern Standby. It's not up to the OS, it's all down to the PC's hardware. If the PC's motherboard, bios and hardware support Modern Standby, then Windows will use it. Only if the PC's hardware does not support Modern Standby will S3 be available.
Are you sure this information is accurate? I have seen information contrary to this. For example, in many threads I have read that Linux does support S3 on machines which only allow Modern Standby on Windows. Which would mean that mainly Microsoft is responsible for this.
 

My Computer

System One

  • OS
    Windows 10 (on 10/2021)

hdmi

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The method to disable Modern Standby (on systems that support it) is officially documented:
 

My Computer

System One

  • OS
    11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Medion S15450
    CPU
    i5 1135G7
    Memory
    16GB DDR4
    Graphics Card(s)
    Intel Iris Xe
    Sound Card
    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
    Monitor(s) Displays
    Sony Bravia XR-55X90J
    Screen Resolution
    3840×2160
    Hard Drives
    2TB SSD internal
    37TB external
    PSU
    Li-ion
    Keyboard
    Logitech K800
    Mouse
    Logitech G402
    Internet Speed
    20Mbit/s up, 200Mbit/s down
    Browser
    FF

Bree

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Are you sure this information is accurate? I have seen information contrary to this...
No, I may be mistaken. My experience with Modern Standby is very new, I only got my first PC that supports it three weeks ago.

My preferred setup for all my laptops is that they should sleep (which ever way they can) on closing the lid, and that they should hibernate after 20 minutes of sleep. That I can do with S0 almost as easily as I have done with S3. The 'almost' in that last sentence is because first I had to restore 'Hibernate after' to the power options, by default it's missing in a clean install of 11 on a PC with S0. Hibernate uses no power, so whether the sleep is S0 or S3 is of little consequence for me and I haven't investigated any further than I felt I needed to to meet my normal uses.

 

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB HDD
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
    Motherboard
    0T6M8G
    Memory
    4GB
    Screen Resolution
    1366x768
    Hard Drives
    500GB HDD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.

jimhoyle

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Local time
6:59 AM
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OS
Windows 10 (on 10/2021)
Hibernate uses no power, so whether the sleep is S0 or S3 is of little consequence for me and I haven't investigated any further than I felt I needed to to meet my normal uses.
Ok thanks, but is your hibernation on the Modern Standby computer like mine: no USB keyboard/mouse wakeup is possible (and Wake-On-LAN doesn't work either), so there's no way to wake the laptop in any other way but by pressing the power button under the lid? When at home, I keep my laptop closed in a difficult place, meaning pressing the power button is very difficult.
 

My Computer

System One

  • OS
    Windows 10 (on 10/2021)

Bree

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but is your hibernation on the Modern Standby computer like mine: no USB keyboard/mouse wakeup is possible (and Wake-On-LAN doesn't work either), so there's no way to wake the laptop in any other way but by pressing the power button under the lid?
That is not an important issue for me, except in as much as I would prefer my systems to resume from hibernation on opening the lid. That ability seems to vary between make and model: some laptops do, some will only wake if power is connected at the time, and others only on pressing the power button. Some have bios options to modify this behaviour, others do not.

For my Modern Standby Dell laptop the bios options available are to enable or disable wake on Lan, and to enable waking from hibernation whenever the AC power is connected. But those available choices in the bios are very similar to those on another of my Dell laptops that does not support modern standby. Hence my statement earlier that I believe the wake options available for your particular machine depend more on what the OEM has decided to design into the bios, rather than whether the hardware supports S0 or not.
 

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB HDD
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
    Motherboard
    0T6M8G
    Memory
    4GB
    Screen Resolution
    1366x768
    Hard Drives
    500GB HDD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
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