I know that with dual channel, if you have one 4GB and one 8GB, that last 4GB (part of the 8GB) will run as single channel. They call it Flex mode. For quad channel on X99, what if I have 4 sticks of 4GB and 4 sticks of 8GB in 8 slots, would they run as quad channel mode or Flex mode? I'm thinking it would be Quad channel mode but not 100%.
Thx!