Nah, I only got 2 sticks of 8GB when I built the PC. I did look up the difference between Dual and Quad for RAM and didn't seem to be much of a difference. I might get 4 sticks one of these days though.
As it is my current RAM doesn't like going over 2666Mhz and that is very unstable at times. Even with increased voltage. So I figured I'd just try lower the timing and managed to go from 15 to 12.
I did get an extra 50 odd points in Cinebench R15 with the OC'd Cache. If it actually makes a difference in anything else though, who knows? I'll give it a go anyway.
Max temps were 74c for the hottest core and 79c for the CPU package (there is two CPU Package numbers listed in HWinfo though [74 and 79] so not sure which I should trust more).
NZXT Phantom 530 | EVGA 850 G2 Supernova | 5820k @ 4.5Ghz / 1.258v | Cache @ 3.8Ghz / 1.160v | x61 Kraken (Silent) | ASUS X99-A | HyperX Fury 16GB 2400Mhz CL15 @ CL12 | LG 34UC79G / Curved / Ultra Wide / 21:9 / 2560 x 1080 / 144Hz / 50-144Hz FreeSync | Gainward Phoenix GTX 1070 | 430.64 Drivers | 1506 Base / 1683 Boost | +200 / +600 | Samsung 850 Evo 250GB SSD / Seagate Barracuda 7200RPM 3TB HDD | Custom Windows 8.1 X64