Originally Posted by JeevusCompact
Follow this first.
After the reg key edit, reboot.
Go into bios, enable AHCI, hit F10 to save and exit.
Boot into you're windows 7, W7 will now install its own AHCI drivers and UDMA 6 will be active "might have to reboot, cannot recall".
Next is go and download Intel's AHCI driver called IATA89ENU.exe found http://downloadcenter.intel.com/Deta...17882&lang=eng
Reboot again maybe, and you're set.
Originally Posted by ComGuards
That's to be expected. You're running a WD Green drive, where performance is secondary to power consumption.
If you want performance, replace the drive with a WD Black hard-drive.