I'm about to do a fresh install on desktop and I have a question about IDE vs. AHCI. Which mode should I pick in the bios? IDE, AHCI or RAID? Does AHCI have any advantages over IDE? My HDD right now ...

I own a P5B Premium and have already set it up with a 150 Raptor drive in IDE mode. I have seen several discussions around using the AHCI instead and how this would need to be set before installing OS ...