How to Add or Remove "AHCI Link Power Management - HIPM/DIPM" from Power Options in Windows
The AHCI Link Power Management - HIPM/DIPM setting in Power Options allows users to configure the link power management mode for disk and storage devices that are attached to the system through an AHCI interface. AHCI Link Power Management is a technique where the SATA AHCI controller puts the SATA link to the internal HDD and/or SSD disk into a very low power mode when there.
You can use the following settings:
Setting Description Active Neither HIPM or DIPM allowed. Link power management is not used. HIPM HIPM (Host Initiated Link Power Management) only is allowed HIPM + DIPM HIPM and DIPM are allowed DIPM DIPM (Device Initiated Link Power Management) only is allowed Lowest HIPM, DIPM, and DEVSLP (if DEVSLP is supported by the storage device) are allowed.
See also: Power Management for Storage Hardware Devices | Microsoft Docs
Device Maintenance Time
Because it is now possible for rotational drives to spend a significant amount of time powered down, Windows 10 also includes a mechanism that gives the drive some powered-up idle time (1 minute every 24 hours) to perform internal maintenance. This only occurs when the system is connected to AC power in order to preserve battery life and when the system is in Modern Standby in order to ensure disk activity is at a minimum. Device maintenance is not configurable.
This tutorial will show you how to add or remove the AHCI Link Power Management - HIPM/DIPM setting under Hard disk in Power Options for all users in Windows 7, Windows 8, and Windows 10.
You must be signed in as an administrator to be able to add or remove this setting in Power Options.
Contents
- Option One: Add or Remove "AHCI Link Power Management - HIPM/DIPM" in Power Options using Command Prompt
- Option Two: Add or Remove "AHCI Link Power Management - HIPM/DIPM" in Power Options using REG file
EXAMPLE: "AHCI Link Power Management - HIPM/DIPM" in Power Options
1 Open an elevated command prompt.
2 Type the command below you want to use into the elevated command prompt, and press Enter.
(Add)
REG ADD HKLM\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\0012ee47-9041-4b5d-9b77-535fba8b1442\0b2d69d7-a2a1-449c-9680-f91c70521c60 /v Attributes /t REG_DWORD /d 2 /f
OR
(Remove - default)
powercfg -attributes SUB_DISK 0b2d69d7-a2a1-449c-9680-f91c70521c60 +ATTRIB_HIDE
3 You can now close the elevated command prompt if you like.
The downloadable .reg files below will modify the DWORD value in the registry key below.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\0012ee47-9041-4b5d-9b77-535fba8b1442\0b2d69d7-a2a1-449c-9680-f91c70521c60
Attributes DWORD
1 = Remove
2 = Add
1 Do step 2 (add) or step 3 (remove) below for what you would like to do.
A) Click/tap on the Download button below to download the file below, and go to step 4 below.
Add_AHCI_Link_Power_Management-HIPM-DIPM_to_Power_Options.reg
Download
This is the default setting.
A) Click/tap on the Download button below to download the file below, and go to step 4 below.
Remove_AHCI_Link_Power_Management-HIPM-DIPM_from_Power_Options.reg
Download
4 Save the .reg file to your desktop.
5 Double click/tap on the downloaded .reg file to merge it.
6 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.
7 You can now delete the downloaded .reg file if you like.
That's it,
Shawn Brink
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Add AHCI Link Power Management to Power Options in Windows
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New #1
Will there be any downsides to turning this to active? I kept receiving "Reset to device, \Device\RaidPort0, was issued." errors in the event log and someone recommended me to do this.
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New #3
Hi Shawn,
Thanks a lot for this nice tutorial and the reg files, great help
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New #5
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New #6
Thank you for this!
I was able to significantly reduce my laptop's power consumption by setting my AHCI SSDs to "Lowest" mode which finally allowed my Intel i7 7700HQ to enter package sleep states deeper than C2. (It was set to "HIPM" by default.)
Before, when it could not go deeper than C2 my CPU idle power consumption was 2.0 - 3.0W watts. Now that the package can go up to C7 it idles around 0.3 - 0.4W.
:)
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New #8
Thanks for this tut. However, my powercfg doesn't have an "-attributes" parameter? I'm using Win10 Pro v1809. Very strange.
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Add AHCI Link Power Management to Power Options in Windows
How to Add or Remove 'AHCI Link Power Management - HIPM/DIPM' from Power Options in WindowsPublished by Shawn BrinkCategory: Performance & Maintenance
28 Dec 2021
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