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Windows 7: AHCI problems

09 Dec 2009   #1
Jonathan_King

Windows 7 Professional x64
 
 
AHCI problems

So I changed my SATA operation mode to AHCI, and tried to install Windows on a new hard drive.
I got to the select installation location screen, and I was faced with this error: "Windows cannot be installed to this disk. The computer's hardware may not support booting to this disk. Ensure that the disk's controller is enabled in the computer's BIOS menu."
I then opened Diskpart, and marked the partition as active and formatted it with ntfs, and it still failed.
What does this mean? I know it has something to do with AHCI.


My System SpecsSystem Spec
.
09 Dec 2009   #2
wallyinnc

Windows 7 x64 finally!
 
 

JK, are you sure the drive is NCQ capable? I saw the other thread you asked about AHCI, but I don't remember if this was discussed
My System SpecsSystem Spec
09 Dec 2009   #3
Jonathan_King

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by wallyinnc View Post
JK, are you sure the drive is NCQ capable? I saw the other thread you asked about AHCI, but I don't remember if this was discussed
I have no idea. How do I find out? I forgot to mention that I tried 2 drives, neither worked.
My System SpecsSystem Spec
.

09 Dec 2009   #4
wallyinnc

Windows 7 x64 finally!
 
 

I think you have to check the specs. When I read the other thread yesterday I also started looking to see what mine was and I found out WD advertises on the specs the ones that are and simply doesn't say anything on the ones that aren't (brilliant sentence of mine, they obviously don't highlight what they don't have... ). Probalby you just have to check the specs at WD's and Hitachi's websites.

Now, I read a little further and I am on doubt if AHCI requires NCQ or enables NCQ. I am also in doubbt now
My System SpecsSystem Spec
09 Dec 2009   #5
Adrian

 

Quote   Quote: Originally Posted by Jonathan_King View Post
So I changed my SATA operation mode to AHCI, and tried to install Windows on a new hard drive.
I got to the select installation location screen, and I was faced with this error: "Windows cannot be installed to this disk. The computer's hardware may not support booting to this disk. Ensure that the disk's controller is enabled in the computer's BIOS menu."
I then opened Diskpart, and marked the partition as active and formatted it with ntfs, and it still failed.
What does this mean? I know it has something to do with AHCI.
Jon, are you setting up redundant drives? AKA RAID?
My System SpecsSystem Spec
09 Dec 2009   #6
Jonathan_King

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by Adrian View Post
Quote   Quote: Originally Posted by Jonathan_King View Post
So I changed my SATA operation mode to AHCI, and tried to install Windows on a new hard drive.
I got to the select installation location screen, and I was faced with this error: "Windows cannot be installed to this disk. The computer's hardware may not support booting to this disk. Ensure that the disk's controller is enabled in the computer's BIOS menu."
I then opened Diskpart, and marked the partition as active and formatted it with ntfs, and it still failed.
What does this mean? I know it has something to do with AHCI.
Jon, are you setting up redundant drives? AKA RAID?
Nope, each drive is separate.
My System SpecsSystem Spec
09 Dec 2009   #7
chinga69

xp/vista/win7/win8/10 tech preview
 
 

hi i have been playing with ahci for the last week myself
once you turn on ahci do you see the hard drive listed in the boot screen as being part of the ahci boot screen it took me a bit of fiddling with the settings to get all 3 of my drives to show up in that part of the boot screen
and when i did enable ahci it kept changing the default boot drive in the bios

cheers brad
My System SpecsSystem Spec
09 Dec 2009   #8
Jonathan_King

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by chinga69 View Post
hi i have been playing with ahci for the last week myself
once you turn on ahci do you see the hard drive listed in the boot screen as being part of the ahci boot screen it took me a bit of fiddling with the settings to get all 3 of my drives to show up in that part of the boot screen
and when i did enable ahci it kept changing the default boot drive in the bios

cheers brad
No, as soon as I change to AHCI, my drives are not listed. I am not using any IDE drives, so I cannot test that.
My System SpecsSystem Spec
09 Dec 2009   #9
chinga69

xp/vista/win7/win8/10 tech preview
 
 

i changed my sata connections on the motherboard as well to get all 3 showing up
My System SpecsSystem Spec
09 Dec 2009   #10
wallyinnc

Windows 7 x64 finally!
 
 

Good point, some motherboards have featues that won't work on all SATA connections (sometimes only SATA 0 to 2 for example). JK, have you checked that?
My System SpecsSystem Spec
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