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My Nickname

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41 Posts

92

January 10th, 2025 08:39

Dell Precision 3590, how to disable S0?

There is a lot of communication around modern standby (S0). As a non-native english speaker, I try to be as precise as possible. 

My 5 years old Inspiron 7590 came with modern standby. I was able to switch S0 off by 2 registry modifications and it was back to what I want = S3.

reg add HKLM\System\CurrentControlSet\Control\Power /v PlatformAoAcOverride /t REG_DWORD /d 0

reg add HKLM\System\CurrentControlSet\Control\Power /v CsEnabled /t REG_DWORD /d 0

My Precision 3590 from December 2024 came with modern standby as well and the 2 registry changes didn't help. With PlatformAoAcOverride the sleep mode disappears completely from all menus.

Your ideas are welcome how to switch S0 off.

ejn63

10 Elder

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28.6K Posts

January 10th, 2025 12:44

On newer Dell systems, you cannot -- they do not have support for the older sleep mode at the firmware level.

ann_droid

2 Intern

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508 Posts

January 10th, 2025 13:01

Hi

This answer

If you want to completely disable Modern Standby, which is a newer sleep mode, you can use the following method:

  1. Open an elevated Command Prompt or PowerShell (run as administrator).
  2. Enter the following command:
    text
    reg add HKLM\System\CurrentControlSet\Control\Power /v PlatformAoAcOverride /t REG_DWORD /d 0
  3. Restart your computer for the changes to take effect.

Additionally, to prevent battery drain issues related to Modern Standby, you can add these registry tweaks:

text
reg add HKLM\System\CurrentControlSet\Control\Power /v EnableInputSuppression /t REG_DWORD /d 1
reg add HKLM\System\CurrentControlSet\Control\Power /v EnforceDisconnectedStandby /t REG_DWORD /d 1
is very similar to that which you have already tried, and may not work.

My Nickname

1 Rookie

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41 Posts

January 10th, 2025 13:34

Thank you for your responses and confirmation. I had already feared that, based on my investigations.

So what I will do, I will extend the battery drain standard from 5% to 15%, to prevent the laptop to hibernate all the time.

powercfg /setdcvalueindex scheme_current sub_presence standbybudgetpercent 15

I hope the BIOS will be updated soon. Microsoft's event viewer logs:

1. TPM hardware failed

2. Intel ME verification failed, platform not supported

3. BIOS verification failed, version currently not supported

I have stopped the high number of "UserModePowerService" events by changing the group policy.

Thanks again.

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