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Windows 7: AHCI : Enable in Windows 7 / Vista

19 Feb 2012   #410
streetwolf

Windows 7 x64 RTM Retail
 
 

I've been trying to narrow down a problem I've been having with restoring a disk image of my SSD in a standalone environment, namely a recovery disk or USB stick. I have the controller defined as AHCI in my BIOS. Restores which used to take minutes can now take hours. Looking through different posts on the Web I've seen reports of the same problem. Many people claim that setting the controller to IDE in the BIOS and then rebooting to your particular standalone restorer fixed the speed issue.

I haven't tried this yet but will when I need to do a restore. Just wondering if I can get verification of this from the resident Gurus here?


My System SpecsSystem Spec
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20 Feb 2012   #411
dbseven

Windows 7 Pro 64Bit
 
 

This is what I got from my motherboard maker support:

To install AHCI drivers properly (required for hot swap):
1. Enable AHCI mode in BIOS (under chipset – southbridge).
2. Format the hard drive.
3. Boot to CD, to Install Windows.
4. During the installation Windows will not recognize any drives, and will prompt you to install the third party AHCI drivers.


support@biostar-usa.com
626-581-1055 menu select 2
This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message.

From: bock_d@bellsouth.net [mailto:bock_d@bellsouth.net]
Sent: Monday, February 13, 2012 4:11 PM
To: support@biostar-usa.com
Subject: << BIOSTAR Technical Support Request FORM >>



=================================================
Question:
How to install AHCI (SATA HOT-SWAPPABLE) drivers in Windows 7 x64?
=================================================
Email:
bock_d@bellsouth.net
Model / BIOS / PCB:
790GXE / /
OS:
Win 7 x64
Name / Country / Local Dealer:
Donald Bock / USA /
CPU:
AMD
Memory / Speed & Size:
/
VGA Brand / Model:

HDD / Size:
/
Power Supply:

Other Device:

=================================================

Will the above AHCI work as described or do I need to do what Biostar Support wrote?

I have NOT enabled AHCI in BIOS yet; this install of Windows 7 was STRAIGHT OFF.

To give a heads up, would you mind giving EXPLICIT details? Thanks. Donald.
My System SpecsSystem Spec
20 Feb 2012   #412
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

If you follow the tutorial it will work just fine.
The tutorial is Explicit details.
Many have already done this with no problems.

If you are, going to or want to, re-install your OS you can do it that way also.
My System SpecsSystem Spec
21 Feb 2012   #413
sry9681

Windows 7 Premium x64
 
 
Already at 0

Can I still proceed with the process of turning the mode to AHCI? on Regedit, it was already at 0. sorry if its a repeated comment.
My System SpecsSystem Spec
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22 Feb 2012   #414
ZaLiTH

Win 10 x64 Pro x64 / Ubuntu 15.10 x64
 
 

Quote   Quote: Originally Posted by sry9681 View Post
Can I still proceed with the process of turning the mode to AHCI? on Regedit, it was already at 0. sorry if its a repeated comment.
The 'start' entry in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services simply enables the AHCI driver in Windows 7 or Vista (source). So if it was already on 0, you shouldn't have any need to change it.

In this case, I'd recommend a backup with your favourite backup software (or if you don't have any, create a fresh Restore Point), then go into the BIOS and try enable AHCI. If it fails to boot, then we can start looking at why.
My System SpecsSystem Spec
22 Feb 2012   #415
sry9681

Windows 7 Premium x64
 
 
:)

I was able to get into the BIOS after a good week of windows 8 not letting me. Aparently i bought this computer with AHCI mode on. well that is a relief! thank you anyway!
My System SpecsSystem Spec
22 Feb 2012   #416
ZaLiTH

Win 10 x64 Pro x64 / Ubuntu 15.10 x64
 
 

Quote   Quote: Originally Posted by sry9681 View Post
I was able to get into the BIOS after a good week of windows 8 not letting me. Aparently i bought this computer with AHCI mode on. well that is a relief! thank you anyway!
Windows shouldn't have anything to do with you accessing the BIOS, it's loaded before the OS... But either way, glad you figured it out.
My System SpecsSystem Spec
22 Feb 2012   #417
dbseven

Windows 7 Pro 64Bit
 
 

Yes, true, Windows 7 and Vista can find the AHCI drivers to LOAD BEFORE OS startup; it jut looks funny with a black text screen showing Loading AHCI driver...then Windows finishes boot.
- dbseven
My System SpecsSystem Spec
07 Mar 2012   #418
MikeM12345

Windows 7 Professional 64bit
 
 

I have enabled AHCI in bios and reg. HOW or WHERE can a actualy see the AHCI driver, have looked in device manager nothing ?
My System SpecsSystem Spec
08 Mar 2012   #419
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

Welcome to Seven Forums MikeM12345.

In Device Manager expand the 'IDE ATA/ATAPI controllers' you should see something with '...AHCI Controller' listed.
My System SpecsSystem Spec
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 AHCI : Enable in Windows 7 / Vista




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