Have an MSI z370 gaming pro carbon ac motherboard and an i5-8600 intel chip with two sticks of 4gb 2133 and 2 sticks of 8gb 2133 installed=24 gigs of system ram! My question is would it be better to use only the two sticks of 8 gigs on motherboard and take out the 2x4gigs or keep the 24 gigs?