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Windows 7: AHCI : Enable in Windows 7 / Vista

09 Apr 2012   #430

Windows 7 Pro x86


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Worked a charm,perfectly,thank you.


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My System SpecsSystem Spec
10 Apr 2012   #431

Windows 7 Professional 64 bit

Hi Bare Foot Kid, thanks for the tutorial, I have it all down and ready to carry out.

I chickened out in the beginning and in the end I decided to do the Vista 64bit install on standard BIOS settings just to make sure I had a nice clean install of my OS and all my software, configured and updated that I know I could fall back on. With the sort of luck I have with computers I needed this fall-back; believe me! I've now made an Acronis image and backed it up onto an external and am considering the option of activating AHCI in the Registry then BIOS.

I know this is a Windows 7 Forum but the result should be the same for Vista 64-bit, besides my nephew, who has the same Crucial SSD does run W7 Ultimate, and he wants to know as well.

I have a query to all the W7F users who have tried this.
I am wondering if I will have a great enough improvement in performance by enabling AHCI given my system (if you can see my specs) to make it worthwhile. Or are there other, more subtle improvements to gain my enabling it?

Any comments on this? Especially from those who have done this already?

Any answer would be welcomed and greatly appreciated.
My System SpecsSystem Spec
10 Apr 2012   #432

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10

Quote   Quote: Originally Posted by Fejinwales View Post
Hi ICit2lol..

G'day mate. OK then, I shall set it to ACHI and do my damnedest to get it working. The reason I was concerned about the SSD failure was that quite a few people had failures with the OCZ drives, a firmware issue apparently when Windows shuts down and tells it to sleep, it stayed asleep and that was that. My nephew suffered this with one of their drives. This is why I could a Crucial as they - seemingly - do not have this issue. But I have shitty luck and if something's gonna go wrong it'll go wrong for me.

I'd love to visit OZ, some of my friends have moved out there, some in Surfers paradise - Gold Coast, one in Rathmines N.S.W, another in Melbourne.

Anyway, thanks for the advice, I am off then to do battle.
Glad you got it sorted I knew you would get pointed in the right direction.
Um yeah mate you would probably feel right at home at the moment - wet as all hell! LOL!!

Got to do battle myself tomorrow with an SSD into a laptop
My System SpecsSystem Spec
18 Apr 2012   #433

Windows 7 Home Premium 64bit.


I've followed the directions up to step 4. I've changed the BIOS but then when I reboot, it goes to load the OS but says "no bootable partiton in table". I can get my computer to load the OS again by restoring the defaults in the BIOS.

Any ideas why this happens?
My System SpecsSystem Spec

18 Apr 2012   #434

Windows 7 Professional 64bit

I just found this tutorial and tried to follow the instructions to enable AHCI for my Asus P5B motherboard.
Unfortunately it didn't work. After editing the registry I rebooted, enabled AHCI in BIOS and rebooted again. Then my screen freezes, telling me that AHCI port is not detected. I can't do anything anymore. No possibility to enter BIOS setup or Windows.
By clearing CMOS and resetting BIOS to default I could get my pc working again and fortunately I had made a system image before and could restore from that.
Do you have any idea why I can't get it working or what I could have done wrong ?
Thanks in advance.
My System SpecsSystem Spec
11 May 2012   #435

Windows 7 Ultimate SP1 x64

Thanks a lot, I was thinking of reinstalling my OS to enable AHCI... you just saved me a lot of hassle !
My System SpecsSystem Spec
11 May 2012   #436

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10

Hiyya BFT my tester machine which has an Intel DG43NB board has the capabilities of running ACHI, EUFI, and 32 or 64bit functions.

Now I have just installed an SSD to it and BIOS has it currently is running 32bit & IDE now my small query is that I also have an 80GB HDD that was the original HDD and install if I change the IDE to ACHI am I going to have problems with the older HDD?

Alternatively I have another 64bit OEM would you recommend me installing that after cleaning up both drives and then changing the 32bit to 64bit in the BIOS and the IDE to ACHI? Will I be gaining much in performance?

I only ask as the HDD is a fairly old 2005 Seagate (3Gbs SATA) as I don't want to do anything to wreck this really nice (and given to me free) board / machine which is currently booting faster than my Sandy Bridge build with an SSD and ACHI! Or I can just get another newer HDD if that is what you say would be better. Cost is not really an issue but all the same I would rather just keep the small HDD.
My System SpecsSystem Spec
12 May 2012   #437

Windows 7 home premium 64bit

Can I still do this even if I installed windows for like 4 months now?
My System SpecsSystem Spec
12 May 2012   #438

64-bit Windows 10 Pro

Hello lilmoja,

If you already had AHCI enabled in the BIOS when you installed Windows 7, then there would be no need to. However, yes you can do this tutorial anytime after installing Windows if needed.
My System SpecsSystem Spec
12 May 2012   #439

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10

Well I did the tutorial but didn't get the messages but it has load the ACHI but the boot is much longer now with a black screen before the OS cuts in - have I done something wrong?
My System SpecsSystem Spec

 AHCI : Enable in Windows 7 / Vista

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