Add AHCI Link Power Management – Adaptive to Power Options in Windows

How to Add AHCI Link Power Management - Adaptive to Power Options in Windows 10

AHCI Link Power Management configures the link power management mode for disk and storage devices that are attached to the system through an AHCI interface. The 'AHCI Link Power Management - Adaptive' parameter allows setting the period of AHCI link idle time before the link is put into a slumber state when Host-Initiated Power Management (HIPM) or Device-Initiated Power Management (DIPM) is enabled.  Here's how to configure this option in Windows 10.

The option AHCI Link Power Management is available in Windows 7 and later versions of Windows.

Depending on your hardware, it can be switched to one of the following modes.

• Active -  Neither HIPM or DIPM allowed. Link power management is disabled.
• HIPM  - Host Initiated Link Power Management only can be used.
• DIPM  - Device Initiated Link Power Management only can be used.
• HIPM + DIPM. Both HIPM and DIPM can be used.
• Lowest -  HIPM, DIPM, and DEVSLP can be activated. DevSlp or DevSleep (sometimes referred to as device sleep or SATA DEVSLP) is a feature in some SATA devices which allows them to go into a low power "device sleep" mode when sent the appropriate signal.

By default, it is hidden in Power Options, so you can enable it as described in the article

Add AHCI Link Power Management to Power Options in Windows

Once you done that, you might want to fine-tune the AHCI Link Power Management feature. This can be done with help of yet another hidden option, Add AHCI Link Power Management - Adaptive.

You can add or remove it from Power Options using either a Registry tweak or powercfg. In this article, we will review both methods.

To Add AHCI Link Power Management to Power Options in Windows 10,

1. Open an elevated command prompt.
2. Add Type or copy-paste the following command:
   powercfg -attributes SUB_DISK dab60367-53fe-4fbc-825e-521d069d2456 -ATTRIB_HIDE.
3. AHCI Link Power Management Adaptive is now available in the Power options applet.
4. To undo the change, use the following command: powercfg -attributes SUB_DISK dab60367-53fe-4fbc-825e-521d069d2456 +ATTRIB_HIDE.

You are done. On the following screenshot, the AHCI Link Power Management - Adaptive option is added to Power Options.

If you have a laptop, you will be able to set this parameter individually when on battery and when plugged in.

The value denotes the number of milliseconds. Minimum value  is 0 (Only use partial state). Maximum value is 300,000 milliseconds (5 minutes). The default value is 100 milliseconds.

Alternatively, you can apply a Registry tweak.

Add Reserve Battery Level to Power Options in Registry

1. Open Registry Editor.
2. Go to the following key:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\0012ee47-9041-4b5d-9b77-535fba8b1442\dab60367-53fe-4fbc-825e-521d069d2456

   Tip: You can access any desired Registry key with one click.

3. In the right pane, change the Attributes 32-bit DWORD value to 0 to enable it. See the following screenshot:
4. Once you make these changes, the setting will appear in Power Options.

You are done!

Note: To remove the option you added, set the data value of Attributes to 1.

Tip: you can open advanced settings of a power plan directly in Windows 10.

To save your time, you can download these ready-to-use Registry files:

Download Registry Files

That's it.