Sata Mode AHCI Bluescreens - 2500k+MSI P67A-GD53

DampCat

DampCat

DampCat

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Joined
26 Feb 2007
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Leafy Cheshire
Hey dudes

For some reason, setting my Sata Mode to AHCI from IDE causes an immediate bluescreen on boot. I cant work out why it's doing it.

Anyone got any ideas?
 
Did you do your OS install in AHCI mode or in IDE mode?

If you did not do your OS install in AHCI mode then you will get BSOD or at least I do. :D
 
You can fix this by navigating to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\msahci in the Registry Editor and changing the Start value from 3 to 0 :) Do this in IDE mode then reboot, change to ACHI and Windows should load :D
 
make a disk image before you do this if you can, if you mess up bad things happen!

edit: I did this too when I had my new build about 2 yrs ago and the above fixed it, next time, set it to AHCI and the install windows ;)

further edit: if you only have 2 things installed it might just be worth going for it :) haha
 
Last edited:
Oh ok!

Can someone explain what it does?

I'll make an image (although I only have Prime and CUPZ installed!) and try the registry trick! :P

Presumably I installed my OS in IDE mode as i hadnt been into the bios prior to that!

Stressing in Prime95 now at 4.5ghz, 1.29v! :)
 
you get a blue screen because windows cant find the device driver for the sata controller, as IDE and ACHI uses different drivers. And windows only installs the one that it needs.

the registry trick basically tells windows that no device driver has yet to be installed, so it'll install the correct one
 
Thanks guys!

I actually used the microsoft fix linked above, rather then the registry hack. I'm sure it was probably the same thing but wanted to try the "official" way first.

All working! yay!

I dont know what it does, but i like it!
 
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