ram issue with mobo

[Rahullohar]

hi guys!! I recently purchased another 8gb ram for my pc coz I get too many stutters I already have 8gb stick of Kingston hyper x, I have asus strix z270g mobo but whenever I try dual channel pc doesn't boot, and when I put both of rams together it works. it tried userbenchmark.net , it says ram performing below average(ensure that a dual+ channel XMP BIOS profile is enabled)..what should I do help... My rig - i5 7600k , msi gaming x 1060 6gb

 

[RCFProd]

Firstly, how can you tell you're stuttering because of lacking RAM?

Secondly, the specs of your second RAM need to match the specs of the other one. If the other one has different clock speeds, voltage and latency timings it won't work.

Even if it matches specs there is still a small chance of it to not work.