Only got it to work once and that was using only drivers from Windows Update (no MSI drivers) If I try to boot with it I can't access it even if I can see it in device manager. If I try to *reboot* with it attached it hangs the system (not freezes, hangs) Does anyone know any trick to get it to work, I would love to have more external storage connected via eSATA! BIOS is set to AHCI I'm thinking it could just be the 3.5" enclosure I'm using (by Hornettek)...or maybe a special driver is needed... I currently have all of the recommended MSI chipset and Intel drivers.. Thanks!