No true quad channel is only supported by the socket 2011 CPUs, they run off the X79 chipset, just as socket 1366 and X58 is true tri channel, as far as your mobo, it's AMD, it's PC CPU only run single channel or dual channel so with your rig either 2 sticks or 4 sticks doesn't matter it's dual channel....As far as sets of DRAM go they don't care, with enough sticks any DRAM can run dual, tri or quad.
Again back to your rig, 2 sticks is better as it is LESS STRESS on the MC (memory controller), AMD has , comparatively speaking has a much weaker MC than do Intel CPUs, so any help you give it improves it....
n1ghtr4v3n
and he-he, no it's not a marketing trick, X79 runs in true quad channel in single channel a stick is operated as a 64 bit, device, dual they operate at 128, tri @ 192 and quad at 256 bits, need to read up before making ridiculous claims