AHCI Link Power Management - Enable HIPM and DIPM

Shawn, this is very interesting tip of yours.

After install the Add_AHCI_Link_Power_Management_Option.reg file, it appears my default state is HIPM in the Advanced Power Settings management both battery & wired powered because looks i'm on a Intel RST limited system configuration that will not allow me to directly link HIPM + DIPM together.

Therefore in the default registry key "iaStor", DIPM & LPM are already set to 1= Enabled for my computer. LPMSTATE is also set in iaStor Key to 0= Partial.

That's mean i'm on "Partial" state and not "Slumber".
"Partial" transistion looks the most common state for best performances when Idle for HDD/SSD & Optical drives.

It is not clear for me if my system will turn automatic from "Slumber" transition (HIPM + DIPM) to "Partial" transition (HIPM).

[correcting]:It is not fully supported till after the S-ATA AHCI ICH9M Intel's chipset. (actually mine).

I do not know if i do force both state HIPM+DIPM for a long idle period, if it will be very efficient and will return it to Partial enough fast.

Otherwise most more recent Intel's chipset should do it.

So, set on "Active" should not slow down activities on the Hard Drive & Optical Drive consumption....during idle

Might read at closer look the link from Intel...

Thanks i'm studying it!!!

dear brink, hello again...

So... i use ssd and hdd. I put the hdd on a drive caddy replacing my DVDbay. the drive caddy was SATA-SATA caddy.
However, when i check my SSD toolbox, the controller showed as 2 IDE and 1 SATA. below is the pic



1) How do I check whether my HDD on the DVDBay using SATA connection or not? and how to check whether my HDD supports DIPM or not?
AHCI has been enabled from BIOS.

2) What happened if my HDD is actually using IDE Connection and not supporting DIPM?


thank you very much,

KP

Hello KP,

Please fill out your system specs so we will know what you have to better help.
http://www.sevenforums.com/tutorials/180324-system-info-see-your-system-specs.html

Q1) Check your motherboard to see if the drive is connected to a SATA or IDE port

Q2) Then it just will not work for that drive, and will for any that do support it.

Done filling out the system specs.

I've turned on the DIPM on from my Intel SSD toolbox System Tuner, and my laptop still works just fine. That Screenshot was from Intel Toolbox as well though. So.... how do i know whether the DIPM works or not? Does it show an error or signs when it doesnt work?

I know how to replace DVDbay and put HDD caddy in on a notebook, I'm not, however, good enough to take apart the laptop to see whether the HDD caddy drive is connected to SATA or IDE port

it's a SATA-SATA caddy according to the seller (it has no packaging, just the caddy), so im not sure.
here's the SS i got from a website .

I don't know whether my HDD drive support DIPM or not, it's model is Seagate Momentus 750 gib

===
if the SS of the caddy connection is too small i'll post the original size image later on, but it's too big i guess

Your laptop uses SATA connections, so you're good to go to set this how you like.

Thanks!

I would like to thank you so much for this post & solution.

I could not use sleep mode on Win 7 64-bit with my new Toshiba Satellite P850 & Corsair F60 SSD it would Blue Screen (BSOD) every time I resumed from sleep, and I love sleep mode & need to use it often.

So basically thanks a lot Shawn, after merging the Reg file and setting DIPM+HIPM, it wakes from sleep beautifully and I can continue to operate the computer where I left off instead of shutting down and booting all the time (or worse, leaving it on instead of sleeping it).

YAY!

Hello Humanoid, and welcome to Seven Forums.

I'm glad to hear it was able to help. Thank you for posting your results.

Does anyone happen to know how, if at all, this setting pertains to PCIe drives? We're experiencing freezes that throw Windows Events referenced at other sites that point to this article as a possible solution.

Thanks!

Thanks for tutorials Brink.
I merge the Add "AHCI Link Power Management-HIPM/DIPM" .reg but I could not get the power options. Looking in the registry I found the key with attribute dword ...2
I'm speaking for Dell xps sata3 ahci. Any idea? Do you advice maybe to remove it?

notis said:

Thanks for tutorials Brink.
I merge the Add "AHCI Link Power Management-HIPM/DIPM" .reg but I could not get the power options. Looking in the registry I found the key with attribute dword ...2
I'm speaking for Dell xps sata3 ahci. Any idea? Do you advice maybe to remove it?

Click to expand...

Hello notis,

Double check the red warning box at the top of the tutorial to see if anything may apply.

If everything checks out, then you might see if restarting the computer may help.

Thanks for quick reply. I've done both.
I'm with two h.disks. First is a SSD Samsung (a clean install). Second WDC WD7500BPKX which is a clone restore with Macrium.
Both with an Os W7. In Bios Ahci enable but it doesn't show if is for both. Can it be only for one of them?
I was trying to enable the power option in the second disk (WDC) for testing performance.
Unfortunately at this moment I don't know if it support Himp/Dimp.
If I let the key with attribute ....2 what exactly it means? Is it okey to let it even if is not showing as an option in Power options? Thanks

It won't hurt anything to leave it enabled (set to 2) if you like.

You might see if merging the .reg file again may help in case one of the approval prompts wasn't approved by you by mistake.

Ok. you are right. There are bigger problems than this in life..
Maybe you know if the dword value is 1 or 0 what it brings?
Anyway... Have a good time... and thanks (again..)

1 = off

2 = on

Does this work on Windows 10?

HoneycombAG said:

Does this work on Windows 10?

Click to expand...

Yes. It'll be the same in Windows 10.

Hi brink will i be able to successfully do this on my system?

chrisbd27 said:

Hi brink will i be able to successfully do this on my system?

Click to expand...

Hello Chris,

If your internal drives have a SATA connection in AHCI mode, then you should be able to.

For Windows 10: Power Options - Add 'AHCI Link Power Management' in Windows 10 - Windows 10 Tutorials

I dont have the option to change that setting in my bios but heres a picture of my controller
and what setting would work best for me?