RAM settings on X51 R3

Jerry Huang

Dec 27, 2015
First post, so please be gentle...:)
I've overclocked my original Micron 16GB 2133MHz to 2666MHz but I found that I can't tighten the timings of the RAM, it is still 15-15-15-35 2T which is quite annoying. Is there anyone could guide me through this?
Thanks in advance!