What is ACHI mode? Like what does it stand for. The WEI To disable frag? I do not have a SSD I'm just wanting information
SATA ports can have 3 settings (modes): IDE, AHCI, & RAID. SSDs need to be in AHCI mode for best performance.
Here's additional info on AHCI: http://en.wikipedia.org/wiki/Advanced_Host_Controller_Interface
SSDs should not be defragged. SSDs have no moving parts so they do not need to be defragged like HDDs.
When you run WEI, Windows will automatically disable defrag on all SSDs it detects.