Question Two Dimm slots not working (3rd and 4th) after installing new CPU

[stenreisel12]

I got a new i7 9700K but after installing I ran into alot of problems, I soon figured out it was my two right side dimm slots. All the sticks itself work. Should I try something out or should I just switch to dual kit and use them on the first 2 slots?

 

[rgd1101]

the cpu cooler on too tight?