Can i use 4x4 RAM on dual channel motherboard?

Solution
It would be preferable to get a single set of 4x4GB or simply get a 2x8GB set (best choice), buying two packages provides no guarantee the two sets will even play together 9and yes I know it's the exact same model), still there are no guarantees - that's why they offer so many different sets, so you can get exactly what you need (and get sticks that have been tested to all play together), a 4stick set may cost a little over 2 two stick sets, but that's because the testing to find 4 sticks that all play together takes longer - also XMP programming is done by the packaged set and 2 sticks can differ from four sticks in the advanced timings i.e. 2x8GB may use a tRFC of 220 where 4x8GB needs a tRFC of 278
It would be preferable to get a single set of 4x4GB or simply get a 2x8GB set (best choice), buying two packages provides no guarantee the two sets will even play together 9and yes I know it's the exact same model), still there are no guarantees - that's why they offer so many different sets, so you can get exactly what you need (and get sticks that have been tested to all play together), a 4stick set may cost a little over 2 two stick sets, but that's because the testing to find 4 sticks that all play together takes longer - also XMP programming is done by the packaged set and 2 sticks can differ from four sticks in the advanced timings i.e. 2x8GB may use a tRFC of 220 where 4x8GB needs a tRFC of 278
 
Solution