Gman72 Posted March 7, 2013 Share Posted March 7, 2013 I have R3E with a 990X and I use 2 sets of Dominator GT CMT12GX3M3A2000C9 FOR TOTAL OF 24 Gb this has been my set up since Jan 2011. Now what I can tell you is when I run this in XMP so mode (2000)only will show up in windows I am using Win 7 64 Pro. this is due to hitting a limitation of some sort with memory bandwidth I dont know the technical term for it. But if I back down to 1800 or 1866 or anything under that then all 24 Gb will be seen by windows. Am I correct? This is due to a bandwidth limitation with X58/I7 chipset. And can you give me the technical information? Also no matter what I do to the timing or voltage with the memory it still wont recognize 24Gb at 2000. also I have put this kit into my x79 sabertooth at xmp mode and windows does show all 24Gb so there is a bandwith limitation with x58 and the I7 together correct? Link to comment Share on other sites More sharing options...
peanutz94 Posted March 7, 2013 Share Posted March 7, 2013 Here this may help a little. http://forum.corsair.com/v3/showthread.php?t=82274 Your just getting out of the optimal rnge of the memory controller. Even with a 990 it doesn't mean it will overclock any better than the other x58 chips. But most of them just won't run memory over 1866mhz no matter how much voltage you throw at them. Link to comment Share on other sites More sharing options...
Gman72 Posted March 7, 2013 Author Share Posted March 7, 2013 ok thanks for the info Link to comment Share on other sites More sharing options...
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