Hi again, A quick cursary scan of the Gigabyte site shows that the manual does not make this point, BUT if you look at the approved memory lists very carefully they have listed whether a total of 6 DIMMs is approved or not. It needs careful study, and I have no experience of Gigabyte.
My general experience has bee that if you study the manual before you buy and only buy approved memory you do not have many problems, but this does need careful study and sales advice cannot always be relied upon.
Final thought best to buy mobo, processor and memory from the same source costs a little more but you buy a lot of insurance if you ask tt
he supplier to confirm that the chosen items are compatible.