jaiello213 Posted September 21, 2010 Share Posted September 21, 2010 I am making some changes to my system and don't want to reinstall Windows 7 64 bit. So I had Windows running with 2 drives in a RAID 0 set up. Now I want to run with just one drive configured as AHCI. I cloned the RAID drives over to a single SSD and changed the BIOS to AHCI and rebooted but crashed to a BSOD. I set the single drive to RAID in the BIOS and it boots just fine. So I followed the steps to enable AHCI in the registry and rebooted. BSOD. The only way it works is set to RAID. Now I am okay with this if this is my only solution but I would prefer it set the way I want. The motherboard is an ASUS P6T Deluxe V2 and the drive is a Corsair P128. I am pretty knowlegable and have tried a bunch of things that did not work. If you really know the answer please feel free to respond. If you are guessing please don't. It's my experience that when someone throws out a question like this most of the responses are guesses or off topic. Looking for real help. Link to comment Share on other sites More sharing options...
Yellowbeard Posted September 21, 2010 Share Posted September 21, 2010 You can do a repair install using your WIN7 disk. Just add the AHCI driver when prompted for drivers. I have done this in the past but no guarantees. Link to comment Share on other sites More sharing options...
Synbios Posted September 21, 2010 Share Posted September 21, 2010 By default Intel RAID includes AHCI, so you should have the same performance and will be able to support TRIM if you keep it on the "RAID" option even if its one drive. Like you said it's not the way that you want it, but it is effectively the same thing if you have an Intel controller. I agree with Yellowbeards recommendation, that method should work if you can find the AHCI driver. Windows does have MSAHCI drivers by default and I've never had to manually install them, but if you can find the Intel ones for your mobo then you might be able to do it that way. I'm not sure why the registry changes didn't work for you, I've done that to go from IDE/Compatible/ATA to AHCI and it's worked fine. I don't have any experience going from RAID to AHCI though. Link to comment Share on other sites More sharing options...
jaiello213 Posted September 21, 2010 Author Share Posted September 21, 2010 I thought that TRIM was not supported when using the RAID drivers? Link to comment Share on other sites More sharing options...
Synbios Posted September 21, 2010 Share Posted September 21, 2010 http://www.bit-tech.net/news/hardware/2010/03/23/intel-releases-trim-for-raid/1 Link to comment Share on other sites More sharing options...
jaiello213 Posted September 21, 2010 Author Share Posted September 21, 2010 very nice. Link to comment Share on other sites More sharing options...
djbigbear Posted September 22, 2010 Share Posted September 22, 2010 read again Intel® Rapid Storage Technology 9.6 supports TRIM in AHCI mode and in RAID mode for drives that are not part of a RAID volume. http://www.intel.com/support/chipsets/imsm/sb/CS-031491.htm Link to comment Share on other sites More sharing options...
jaiello213 Posted September 22, 2010 Author Share Posted September 22, 2010 I saw that. My exact configuration. Thanks. Link to comment Share on other sites More sharing options...
Synbios Posted September 23, 2010 Share Posted September 23, 2010 read again http://www.intel.com/support/chipsets/imsm/sb/CS-031491.htm Right, so my point is that with the latest intel drivers if you have only one drive in "RAID" (hence RAID in quotations in my original post as well) mode that's not really in RAID, it seems like the same as having plain AHCI. There shouldn't be any functional difference. Link to comment Share on other sites More sharing options...
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