I've been looking quit a while on this topic for a solution for my similar problem. I can't get my new SSD working with AHCI enabled on my nForce mobo. In IDE mode everything works fine, but I really want to get it working with AHCI. Hopefully you can help me. As far as I read on this topic I do believe in the expertise of Fernando. The things I've read so far has only to do with Windows XP while I'm using Windows 7. Please help!
Further specs of my system:
OS: Windows 7 x64
Mobo: M3N-HT Deluxe (nForce 780a SLI)
SSD: OCZ Vertex 3 (firmware 2.15)
HDD: Samsung Spinpoint 103SJ
MEM: 4GB Kingston 1066Mhz
VGA: Onboard (external just died, looking for a new one)
DVD-RAM: LG or something.
FLOPPY: nope, but I do have a bootable USB
What I've tried:
After 2 months working on Windows 7 x64 on IDE mode I decided I wanted to change to AHCI mode. Tried the register tweak (change .../msahci/start value from 3 to 0), reboot, change IDE to AHCI in BIOS. Results in endless reboot at the point of loading Windows. After that I tried to reinstall directly on AHCI mode. Same results. Tried other SATA ports on my mobo. Didn't work as well. Again installed on IDE mode and searched for ours and ours to a solution. Nothing comes close as this topic but I'm quit dizzy right now of all the research.
I put all my trust in you guys. Thanks in advance!
By the way: it's not an issue for me to reinstall.
I feel your pain with troubleshooting oddball things. Although, as Fernando stated, it seems like you're having a non-nLite related problem, but posted in the nLite Nvidia driver related forum. I'm not familar with SSD drives other than they are exceedingly fast. Although, I've gotten the impression from some readings that they have nuances that need to be considered prior to just popping them in the case and installing an OS on them. Then gain, I could be wrong on that point.
I'm sort of surprised that you're having problems getting W7 installed on the SSD drive with the mobo in AHCI mode. When I tried the W7 trial release, I didn't have any problems installing on a primary partition on my SATA drive connected to my 780a chipset mobo while in AHCI mode. Granted, I'm comparing apples to oranges to some extent between storage device types. Although, the 780a chipset can be a PITA. Some design limitations were imposed on its users when it comes to switching between AHCI and RAID mode.
With the 590 chipset, installing a WXPP (Windows XP Pro) OS was a piece of cake, regardless of what mode you used. The reason why it was easy is because there were dedicated AHCI/IDE, RAID/IDE, and IDE modes. So, WXPP automatically detected the AHCI or RAID controller and asked for the drivers. Because you were in this kind of 50/50 controller mode, it didn't just BSOD all over you due to a driver finding problem.
With the 780a chipset, it's all or nothing when it comes to choosing a controller option. There's only AHCI, RAID, or IDE mode. The IDE mode is kind of an all purpose failsafe mode that (should) work all the time because of the generic IDE drivers included with WXPP. Where you get into a problem is having to choose either AHCI or RAID during the OS WXPP install process (F6). You can only choose one controller mode, install the drivers, and your choice is set in stone unless you want to blow out your OS and create a RAID controller build.
Even though I got pretty familiar with nLite to the point I believe I was doing everything correctly, it did not do a good enough job of rolling in the compatible 780a AHCI and RAID drivers into the final slipstreamed ISO file. What I expected was for it to pack in those drivers and make registry modifications or notations "somewhere" so the installing OS knew it had access to both AHCI and RAID drivers if I chose to switch between controllers. Well, nLite never did what it should have done in that regard. If I switched between controllers, I'd get a BSOD based on what drivers the OS couldn't find, but had access to in the Windows folder. So, I was forced to rely on my old tried and true method for getting dual AHCI and RAID driver access within WXPP.
My tried and true method does depend on having at least one PATA drive. From that point, I install a raw uncustomized nor updated WXPP copy on a primary partition while in IDE mode. Once that process is done, I reboot and go through the process of enabling the AHCI controller in the mobo BIOS, have WXPP detect it, and then install the AHCI drivers. Then, I just repeat the process for the RAID controller until I have a raw WXPP copy on the PATA drive that has both driver sets installed. Afterwards, I use my Segate provided copy of Acronis True Image to copy that OS image to a SATA drive primary partition while in either AHCI or RAID mode. Then, I boot to that SATA primary partition and continue my OS build process until I've got something I want to image and put on the storage drive for safe keeping. This is sort of a PITA rigamarole process, but it's the best method I've found to work.
Anyway, this info probably won't help you with your particular problem, but if sparks an idea for a breakthrough or helps someone else with a 780a chipset, great.
Good luck on your efforts.
P.S. Make sure you've got the most recent BIOS version from your mobo manufacturer installed. Since W7 walks you through the process of choosing a hard drive, formatting it, and then creating a primary partition on the soon to be OS system drive, I'm assuming you've gone through that process without any success. The only other thing I suggest like Fernando suggested is to check out the Nvidia 780a mobo chipset forums and the forums related to your mobo on the manufacturer's website.
Edited by DBF68, 03 November 2011 - 04:20 AM.