Anyone here has an X79 Sabertooth and 8 x Corsair DDR3-1600C10 RAM combo?

I have it but I find that the BIOS sometimes report 60GB instead of 64GB. Someone told me increasing the VCCSA and VTT voltage can help. I did that and the frequency of RAM missing is reduced but still haven't gone away.

I find an Asus web page that seems to mention 64GB may require higher voltage:

http://rog.asus.com/46212011/guides/...rclocking-2/3/

Does anyone here have the same issue as mine? Can you fix it?? Thanks!