3 sticks in a single channel or 2 in a dual channel?
3 sticks in a single channel or 2 in a dual channel?
In short, you should consider using all three sticks together for maximum performance. Adding a third stick in slots B1 or B2 won’t force the others into single-channel mode; it will allow them to operate in dual-channel as intended. Running 16GB in duel channel is better than splitting across channels.