this is my 5th evga 780i board now. it is doing the same CRAP all the others have done. shadedshu:shadedshu here's the deal... 5 BRAND NEW, SEALED BOX, Evga 780i boards now have run fine for about 24hours at bios defaults. the minute i go back and set something different it wont boot and corrupts data on the hard drive to where i cant boot into windows without reinstalling. you may think, "he set something wrong or overclocked to far". NO! EXAMPLE: i have a set of OCZ 1066mhz 2x1gigs... they have ran fine for MONTHS at 1066mhz at the 2.3v stock settings WITH EPP on in the bios of my 680i. my 780i will boot and run fine with the OCZ's set to 667mhz @ 1.8v BUT... i set them to run 1066mhz, voltage is auto set to 2.3v and timings are set correctly from SPD settings.... reboot, beeeeeeeeep! nothing. then... i turn the machine off, boot it up again, it shows 1066mhz, right voltage and timings. tries to boot into windows and BAM! dead. BSOD! i have had countless DIFFERENT error codes that point to EVERY piece of hardware in the whole damn machine being problematic. you may be thinking, "dude, it's your ram!" NO!! EXAMPLE: lets say i leave the ram alone.... and now im gonna set the proper multi and FSB settings along with the CPU:mem divider. dont touch voltage at all, everything still running at stock speeds. reboot....... BAM! dead. reboot again.... boots fine with all setting(set by me) in tact, (fresh load of windows now) BSOD! not even system restore or vistas boot fix will work. now your thinking "have you tried XP?" YES, i have. same CRAP! other things i've tried..... different ram different video cards different dvd drive different PSU different hard drives different CPU's even different motherboards same damn problem!!!! here's the kicker..... i go back to the 680i and everything works FLAWLESS. even overclocked! so now your thinking, " dont use a 780i man. sell it." i have 2 currently that really dont qualify for RMA because they work fine at bios defaults. does anyone want to buy a registered POS 780i? NO! im stuck with $500+ in motherboards that are complete crap. EVGA, i want my damn money back.... NOW! if you have ANY suggestions... PLEASE let me know.