Problem switching to AHCI mode

[idata]

Hello, I just completed this build: Opteron 6170 x 2 on Asus Kgpe-D16, 24gb Kingston ECC ram, Quadro 2000, Intel X25M 120gb, 3tb on one internal and one external hdd, Win 7 ultimate. I didn't check bios for ide/ahci mode prior to installing windows, and it was set for ide. Last night I editted registry and changed bios to ACHI. System rebooted, and everything seemed ok. On second (or maybe 3rd) reboot, the system hung at windows start up screen. I pressed reset, and now after post, I get a brief what looks like bsod, and system starts boot process again. I have not applied any firmware updates nor run any optimization tools on the drive. Can anyone please help get this system up again?

[idata]

Let's see, I've had some major issues since my last post (had the system completely apart three or four times), but the system is up and running now. I posted initially after completing the procedure described in parsec's post. I don't know why, because after taking a wide detour, I ran the exact same procedure again with success.

I'm not sure however, whether or not the firmware update worked. If it did, what should I see in device manager>disk drives>intel ssd>details>hardware ids?

Thanks for taking time to post!

[idata]

The latest firmware update is 2CV102M3, the previous firmware is 2CV102HD.

I'm glad your PC is running fine again. IMO, the new firmware is not essential for these SSDs, I have two with 02M3 on them, and two with 02HD. With 02M3, you lose a small amount of sequential read speed but gain in IOPs, and some issues are fixed that I never encountered. See for yourself:

http://downloadmirror.intel.com/18363/eng/Release%20Notes.PDF http://downloadmirror.intel.com/18363/eng/Release%20Notes.PDF

Just wondering, which driver are you using, msahci, or an AMD driver?

Message was edited by: parsec

[idata]

I'm using an AMD driver now.