Last night, I tried installing windows with my SATA controller in AHCI mode, however the Windows 8 boot disk would not work. As soon as I changed the controller to IDE the installation was very easy. However, now my SSD is not getting the speed it should have. I am getting about 204 MB/s READ and about 155.9 MB/s WRITE, which can't be right because the OCZ site says "Up to 550 MB/s Sequential Reads". I am using CrystalDiskMArk 3.0.2. I need help with getting this SSD to function properly. Do you SSD guys have any ideas?