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SATA IDE to AHCI

post #1 of 80
Thread Starter 
If I change my SATA 2 HDD from IDE contiguration to AHCI will I lose my data? Also, what are the advantages/disadvatages of doing this?

Thnx.
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post #2 of 80
i'm not exactly sure how well it works when you are just switching and not reinstalling, but there aren't many advantages to using AHCI.
AHCI allows:
-hotswapping
-NCQ (native command queuing) (only if your drive supports it)

that is all i am aware of, there may be more
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post #3 of 80
Thread Starter 
Quote:
Originally Posted by blatsha92 View Post
i'm not exactly sure how well it works when you are just switching and not reinstalling, but there aren't many advantages to using AHCI.
AHCI allows:
-hotswapping
-NCQ (native command queuing) (only if your drive supports it)

that is all i am aware of, there may be more
Thank you. +Rep

If someone would like to post whethor or not changing the settings would lose any/all data, that'd be pretty sweet.
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post #4 of 80
Pretty sure you wont lose any data, but I think you wont be able to boot into Windows unless you reinstalled it.
Edited by WaLshy11 - 12/21/09 at 5:46pm
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post #5 of 80
Thread Starter 
Would a windows repair from the win 7 cure this?
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post #6 of 80
There is a way to install AHCI drivers after installing in IDE mode from within windows. I will look.

It looks like you have to do this:

http://www.avforums.com/forums/windo...ws-7-ahci.html
Quote:
Run Registry Editor
- Go to HKLM\\System\\CurrentControlSet\\Services\\Msahci
- Change the "Start" value to 0
- Reboot and go to BIOS immediately
- Set BIOS to AHCI
Worked for this person posting the question about ahci
Quote:
OK, the W7 reg value was set to 3, changed to 0, enabled AHCI in the BIOS and W7 started ok
So since it is already installed with IDE mode, type regedit in the run box. Then navigate to the folders as listed here Hot Key Local Machine\\System\\CurrentControlSet\\Services\\Msah ci. Then reboot and it should switch to AHCI mode.
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post #7 of 80
Damn, ericeod beat me!
That method apparently works with Vista and 7, not sure about XP.. but it looks like you are using 7 so should be all good!
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post #8 of 80
Thread Starter 
Quote:
Originally Posted by ericeod View Post
There is a way to install AHCI drivers after installing in IDE mode from within windows. I will look.

It looks like you have to do this:

http://www.avforums.com/forums/windo...ws-7-ahci.html

Worked for this person posting the question about ahci


So since it is already installed with IDE mode, type regedit in the run box. Then navigate to the folders as listed here Hot Key Local Machine\\System\\CurrentControlSet\\Services\\Msah ci. Then reboot and it should switch to AHCI mode.

Thank you so much. +Rep
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post #9 of 80
Just wanted to confirm, you won't lose any data when you switch from IDE to AHCI I did this on my windows 7 OS.. at first when I tried to apply AHCI via BIOS I got BSOD, but just follow the regedit solution and you'll be able to boot from AHCI. Anyway, just some feedback from a switcher.
post #10 of 80
Is there any real world benefits to this? Like just browsing and gaming?
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