Have managed to get another 1/4 turn into each cpu screw and it is now doing the aida64 test at around 65c per core. Unbelievable how much trnsion it requires for contact.
It doesn't make a noticeable difference as long as your flow rate is adequate.
To achieve better cooling try increasing the pump speed if its not running aggressively, flow is usually seen to positively impact the cooling more substantially over the air flow through rads. Worth messing with the fans but we can't see how you have those configured from these photos, top out, bottom in?
This is what i meant the right orientation! For x99 it should be how you have it but for 115x mobos it should be the other way. So inlet and outlet are side by side horizontally. Meaning the fins inside go across the CPU to discipate the heat better. Also did you change the Jet plate because i think it comes by default fitted for x99 CPUsAre you sure that waterblock on the CPU is the right orientation?
Looks like the same as the one on my predator and I have it so the EK symbol is bottom right, and the in/out tubing are side by side, my temps with the same CPU / pretty much same O/C are lower with the fanspeed at min.