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Windows 7: AHCI : Enable in Windows 7 / Vista

14 Oct 2010   #270
DirtyElf

Windows 7 64-bit Home
 
 

i dont need to do this tutorial to enable AHCI if i enabled it in my BIOS before i installed windows 7 correct? how can i be sure that it is activated?


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14 Oct 2010   #271
wakeboardr116

Windows 7 Professional x64 6.1 Build 7600
 
 

Quote   Quote: Originally Posted by DirtyElf View Post
i dont need to do this tutorial to enable AHCI if i enabled it in my BIOS before i installed windows 7 correct? how can i be sure that it is activated?
If you enabled it in the BIOS before installing then it should already be set. If you want to double check go to device manager and click on storage controllers and it should say something like SATA RAID controller.
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14 Oct 2010   #272
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate
 
 

Hello DE.



Here's what mine looks like.


AHCI : Enable in Windows 7 / Vista-ahci.jpg


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14 Oct 2010   #273
DirtyElf

Windows 7 64-bit Home
 
 

ok ill check when i get home, thanks
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14 Oct 2010   #274
DirtyElf

Windows 7 64-bit Home
 
 

it appears my AHCI is functioning correctly... right?


Attached Thumbnails
AHCI : Enable in Windows 7 / Vista-devices.png  
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14 Oct 2010   #275
wakeboardr116

Windows 7 Professional x64 6.1 Build 7600
 
 

Appears so.
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15 Oct 2010   #276
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate
 
 

Quote   Quote: Originally Posted by DirtyElf View Post
it appears my AHCI is functioning correctly... right?


Well done mate.
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15 Oct 2010   #277
ZaLiTH

Win 10 x64 Pro x64 / Ubuntu 15.10 x64
 
 

Here's some food for though (been a while since I did one of these posts... lol), I've seen a few posts on blogs and other forums in response to people asking "should I use IDE / AHCI / RAID...?" that suggest going straight for RAID, even if there's no RAID arrays.

Essentially, AHCI is RAID without the striping or mirroring features. Whether or not that is true across the board or only with the more modern controllers is beyond me, but considering the fact that both have been around for long enough to be a commonplace, I'd say that's a safe assumption.

So, based on that theory, to 'future proof' a build, wouldn't it actually make sense to select RAID even if there are no arrays? That way, if a PC owner descides to set up a RAID array later (as opposed to actually planning to), it'll be much easier and won't require any reinstalling or altering the OS...
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15 Oct 2010   #278
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

The problem occurs when you try to switch from IDE to either RAID or AHCI.

Actually RAID is a function of AHCI, when you select RAID it uses AHCI and therefore has it's functions.

It's generally advised to use RAID settings before you install your OS, this will cover you for all scenarios, and will work with one or more HDDs and/or SSDs as separate drives. These can be set to RAID mode if the prerequisites are met.
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15 Oct 2010   #279
ZaLiTH

Win 10 x64 Pro x64 / Ubuntu 15.10 x64
 
 

Quote   Quote: Originally Posted by Dave76 View Post
The problem occurs when you try to switch from IDE to either RAID or AHCI.
I am quite aware of that, thanks Dave. I actually used this very tutorial to change my system a few months back.

Quote   Quote: Originally Posted by Dave76 View Post
Actually RAID is a function of AHCI, when you select RAID it uses AHCI and therefore has it's functions.
Maybe I'm nit-picking, but isn't RAID technology older than AHCI mode...? Although, I suppose if you look at what the acronyms stand for, that is actually correct. Damn the computer world... So confusing, yet so simple at the same time.

Quote   Quote: Originally Posted by Dave76 View Post
It's generally advised to use RAID settings before you install your OS, this will cover you for all scenarios, and will work with one or more HDDs and/or SSDs as separate drives. These can be set to RAID mode if the prerequisites are met.
In all honesty, I'd never really seen much about that until I specifically went looking for it.. Found a few very interesting reads on that topic though.
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 AHCI : Enable in Windows 7 / Vista




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