Can't enable Modern Standby

Brink · 27 Dec 2018

I'm thinking the same that it's going to be a BIOS update needed.

Cliff S · 27 Dec 2018

Brink said:

I'm thinking the same that it's going to be a BIOS update needed.

And that's even if gaming and workstation boards even get it.

Brink · 29 Dec 2018

Update from ASUS:

Hello Shawn Brink,

Thank you for your response to ASUS product support, my name is Adam P and I do hope you are having a great day.

I appreciate your patience and understand that this may be a hassle. I assure you that it is important to us that your issue gets resolved and we will continue to work diligently to do so. Upon checking, we only have recommendation that the system firmware does not support S0 or modern mode.

Should you need additional assistance, kindly let me know and I'll do my best to help you further. Thank you for choosing ASUS.

Regards,
Adam P.

ASUS Product Support

t0yz · 29 Dec 2018

Nice "recommendation". I really dislike these non-answers and bad PR speak.

Test01 · 08 Sep 2019

Hello Brink,

I'have bought a new PC recently and also tried to get the Modern Standby Mode active.
There's an Aorus Master motherboard in my build. The only relevant change in BIOS was the 'Package C State limit' setting from 'Auto' to 'C10'. The outcome:

Can't enable Modern Standby-bez-tytu-u.png

Best regards.

Brink · 08 Sep 2019

Thank you @Test01, and welcome to Ten Forums.

I had to jump through a few BIOS settings to get there, but unfortunately it didn't make any difference so far with my motherboard.

Can't enable Modern Standby-powercfg-.png

none01 · 25 Oct 2019

I got modern standby working on my Asus Maximus XI Hero, the process is a bit finicky, so i will try to keep this as short as possible:
1. Download the most recent BIOS for your mainboard from the Asus site.
2. Download AMISetup_IFR_v0_1.rar from win-raid.com and extract it.
3. Now drag and drop the BIOS *.cap file on AMISetup_IFR.bat.
4. Open _Setup\setup_extr.txt and search for "Low Power S0".
5. Note the offset at VarStoreInfo (0x17 on my board):

6. Download modGRUBShell.efi from github.com and rename it to bootx64.efi
7. Grab a USB stick with NTFS/FAT32 and create the folder structure efi/boot; copy bootx64.efi into boot:

8. Reboot your PC into BIOS/UEFI and boot from the USB stick (you might need to disable secure boot).
9. Enter setup_var 0x17 0x1 into the grub shell (0x17 should be replaced with the correct mainboard offset):

10. After a reboot Windows should be able to use modern standby.

none01 · 29 Oct 2019

Here is a much easier way which basically does the same as mentioned in my previous post:
1. Download and extract scewin.rar
2. Open a administrative command shell and enter:
scewin /i /ms "Low Power S0 Idle Capability" /qv 0x01 /lang en-US
3. Reboot and done.

Edit:
This also works with every other BIOS entry that is usually inaccessible on the regular UEFI setup.
To get a full list of all commands:
scewin /o /s nvram.txt /lang en-US

MrPepka · 29 Aug 2020

I know that the last post on this topic is from a few months ago, but I also have a question about Modern Standby. Does anyone know if the Gigabyte X570 Aorus Elite board supports this function? I don't have the "Package C State limit" function in UEFI, I have something like "CPU C-States", but after enabling this option, the "CPU C3, C6" options etc. doesn't show

MrPepka · 01 Sep 2020

I turned on the "Global C-States" option anyway, and so I don't have Modern Standby. Can anyone who also has a Gigabyte X570 Aorus Elite motherboard confirm that they also have Modern Standby?