i like corsair. they are having problems with the 680i chipsets (most particularly the dominator series, the others are ok). However, never before have i seen a company call to see if the replacements they sent worked. I'm sure some of it had to do with the fact that it was four sets (8 stick total) being sent. Unknownly the motherboards would like them but they worked in other systems. Either way, good Customer support FTW.