I just got a 4x16GB kit of vengeance rgb pro. The system sees all 4 dimms but iCue only sees two in the A1 and B1 slots and does not see the two in C1 and D1. I tried putting them into dual channel (A1, A2, B1, B2) and it now works but now its obviously dual channel.
firmware, icue, and bios are all up to date and I have spd-write enabled.
I cant say it matters that much because I dont even have a windowed case but its just the peace of mind aspect that everything is working.
Mobo is a asus x99-a II