I found this software when I was having issues on the Intel platform and it worked fine (in fact I'm still using it) in just the AHCI Mode without the need to change anything else in BIOS so, hopefully it will work for you on the AMD platform.
As they say: "Nothing ventured, nothing gained" If ti works OK great but if it doesn't then we will know it is more than likely a BIOS issue rather than hardware or software.