I once bought a 32 GB (4 x 8 GB, DDR4, CAS Latency is 18) kit of Corsair Vengeance RGB memory and it used to work well. After a while, my PC crashed and I couldn't boot it up with more than 3 sticks anymore. I've been able to get the system to boot to the BIOS with the 4 sticks (unstable), but...