[quotemsg=6052180,0,658362]Your post got me wondering....So, I looked in my Sony Vaio Control panel, to see which controller I was using. I did this after looking in my bios, and discovering...same as you, that there was no option to change to ahci. What I found, in my control panel, surprised me! I saw that my laptop was indeed using an ahci controller. apparently, the Sony laptop knows when you install an ssd, and makes that change for you, automatically. At least, mine did... Otherwise, let me recommend Secunia PSI. I have been using it for a long time now and really like it. It will automatically keep you advised when driver updates and software updates become available for your computer.[/quotemsg]
This just saved my life right now. Same thing Sony Vaio laptop, Slim pickens for BIOS options. No Disk Controller Mode selection in there. I just bought a SSD and had chatted with Crucial and Sony support and tried many other forums. Finally found this site and your answer. Sure enough I checked and Voilà, it's already in A.H.C.I. mode. So hopefully it stays in that mode when I put in the new SSD. Device manager is a great tool. Thank you so much for your answer, and kudos on the Secunia PSI reference.