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post #8 of (permalink) Old 02-09-2019, 09:02 AM
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Quote: Originally Posted by encrypted11 View Post
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.

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