When I installed my Samsung SSD 840 series 120gb I configure it in IDE mode not knowing it should have been in ACHI mode instead, my question is can I reconfigure it into ACHI mode and how do I do it without losing any files? I've also done it to and OCZ and a Plextor SSD and would like to reconfigure them as well. Any and all info will be greatly appreciated! The Samsung computer is an ASUS-M4A785TD-V Evo-,CPU-AMD Phenom II X4 925 processor, 6GBs of ram, Nvidia Geforce GT 520video card, Multi Drive+ blue ray writer,2x 1TB HHD, Corsair 650W PSU. Win. 7Ultimate. (2.) My OCZ sys.is: ASUS F1A75-V Pro, AMD A8 3870K APU, Corsair 16GB 1600Mhz ram, OCZ 120GB SSD + 500GB HHD, 1TB HHD, Nividia Geforce GT520 video card, LG blue ray player + LG Multi-Drive, Corsair 600W PSU, Win. 7 Home P.(3.) my Plextor is housed in an: AsRock- FM2A85X Extreme 4 w/ AMD A10 5800K APU,16GBs G.Skill 1866Mhz of ram, 1Plextor 256GB M5 Pro.SSD, 2x 1TB HHDs + 1-2TB External drive, Rosewill Hive 750W PSU, Win.7 Home P. I need these drive configured right so that I can get the best performance from them when I do some upgrades on these systems!!