SSD opens programs faster on AHCI but tranfer rates have taken a nose drop, pls help!

[Rafael Mestdag]

I had been reading about how AHCI mode makes the disk drives faster, especially SSD's but after I set Windows 7 to use AHCI and then changed it from IDE to AHCI in BIOS, I noticed immediately that programs like Chrome open a lot faster now, but on the other hand tranfer rates from my 2TB 7200rpm HDD onto the ssd have dropped considerably.

Why is this? Pls help!

EDIT: Battlefield 3 simply stopped working, it won't start anymore now.

 

[USAFRet]

Changing from IDE to AHCI, after the OS is installed.

Did you change the required keys in the Registry?
https://winaero.com/blog/switch-from-ide-to-achi-after-installing-windows-7-or-windows-8/

 

[Rafael Mestdag]

Changing from IDE to AHCI, after the OS is installed.

Did you change the required keys in the Registry?
https://winaero.com/blog/switch-from-ide-to-achi-after-installing-windows-7-or-windows-8/

That's exactly what I did.