i bought a ryzen 2400 cpu , asus b350 plus mobo with 2 DDR4 RAM sticks (4 Gb each of hyper x fury ) few months ago. problem is cpu fan is so big that its edge came right on the top of RAM slot 1 so it cannot be used. now using RAM slot 2 and 4. in order to upgrade RAM, technical guy suggested to buy 8 Gb single stick and use slot 3. All are same refresh rate @ 3000 Mhz mother board guide says to fill alternate slots for faster performance. but since slot 1 cannot be used , slot 2 and 4 having 4 Gb sticks. if i put 8 Gb stick in slot 3 , will it reduce performance or not is my question ?