I have 1x8gb DDR4 from my last pc. I ordered new parts and was wondering if I can put the old stick with the new ones. The old stick is Corsair vengeance RGB 3000MHz and the new ones are Corsair Vengeance LED 3200MHz. The new kit is 2x8gb and the new mobo is Msi Z270 Gaming Pro Carbon. Timing on new sticks are CL16 (16-18-18-36) and the old stick has same timings. Is it possible and if it is then what DIMM slots do I use? Thanks.