Originally Posted by encrypted11
It's not about the limit of the memory controller here. Asus's advertised 4400MHz+ memory on 4 DIMM Maximus boards refer to a QVL entry with all 4 DIMM slots populated since these boards are on the T topology where 4 DIMMs will clock better than 2.
I do recall 4133MHz being the end of potential frequency scaling on these on 2 sticks.
MSI's Z390 boards are running daisy chain topology however, you'd have better 2 DIMM clocking headroom on those.
T-Topology does not mean that it will clock 4 sticks better than 2. It means it may clock 4 sticks better than a daisy chain motherboard will clock 4 sticks and in fact, it may not clock 2 sticks as well as a daisy-chain board will clock 2 sticks.
That's the idea behind T-topology, but I've also read a number of very technical articles that tout how daisy-chain can be tweaked (with timings) to be better for 2 sticks and just as good for 4 sticks vs. t-topology so some articles say it is more about the actual details of the implementation than it is about which topology is chosen.
(-1 AVX offset) on ASRock Z390 Taichi
with Noctua NH-D15 air cooler
CPU offset voltage of -25mv, runs VRVout 1.240-1.313V on full AVX load, 1.225-1.275V on non-AVX load
2x8GB [email protected] at 1.45V
, G.Skill F4-3733C17Q-32GTZKK (XMP rated [email protected]
EVGA GTX 1060 6GB OC with Corsair RMx 750W power supply
Samsung 970 EVO 500GB NVMe boot SSD and four other drives all in a Fractal Design R6 Case