I just noticed in my bios, that AHCI mode is not disabled for my SATAII drives. I read that this should be specified during windows setup, but is that the only way, or can I change it now and be ok? I'm guessing no, but it's worth a shot, and also is it worth the performance increase to enable ahci? Rig is in my sig, and are there any other DS3 tweaks I should look for if I do need to do a re-install? And do I have to re-format or can I do a 'repair' install and do the F6 then, I think I saw somewhere you could, but I'm not sure