AHCI in Asus K50ID BIOS?

[gia-alexa]

Hey! I just brought a new SSD for my Asus K50ID but I can't install either windows or linux on it! Windows just freezes and Ubuntu installer gives me error 30 (read only) no matter what I do. I was able to install on it when it was put into another computer and even boot up on the installed system with the first computer, but then same problem, it's read only. I tried to google around and ask in the ubuntu forums and they all say it's about AHCI-settings, something I can't find in my K50ID BIOS.

Is there anyway to enable, mod, or go around this whole thing? I'd really like not to just have wasted 50$ on a drive that doesn't work with my computer.