Originally Posted by AlphaC
Wouldn't obsess over it, but do know that in the latest Z390 boards such as Phantom Gaming 7 they've been using SiC634. The ISL6617 provides current balancing so it basically down to the OTP. OTP is likely handled by an external temperature sensor. (See https://www.tweaktown.com/articles/9...ew/index3.html
I don't understand the obsession with memory layout when the Taichi is listing DDR4 4666+(OC) / 4400(OC) / 4300(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 3466(OC). Even with T-topology Taichi was hitting 3533MHz on X370/X470 : AMD's slides show 3200Mhz C14 and 3600C16 both provided 69ns memory latency for Ryzen 3rd gen and it's 100% certain that it can hit 3200C14.
Anyhow, since it's using ISL6617 doublers + 50A DrMos I'm interested on their pricing structure: to price it north of ~$250-300 is very unlikely. The ~$200 Aorus Elite is using the same layout more or less, so most of the upgrades on the Taichi this time around are minor compared to say the ~$180 ASUS TUF Plus (no doublers). You do get a heatpipe , debug code LED, power/reset , backplate (not sure if thermal), etc.
ASRock use multi-kind MosFETs on a single board model before(see Z370 extreme4, also some low-end X370/B350/X470/B450 boards), so who knows.
T-Topology is much better for 4 dimms at very high frequency, Gigabyte Z390 Master can achieve 4533 @4*8g but it can hardly exceed 4200 with 2 dimms. Its QVL: [email protected]
*8, [email protected]
*8. So QVL is not everything, especially for 2 dimms on a t-topo board.
Also, it seems that the IF frequency has far more than two options (1:1/2:1). So with 3733+ memory frequency may not always mean high latency, if we can maintain IF frequency at a high level.
. Toppc is a MSI engineer who broke DDR4 frequency record at Computex2019.
\\Actually it's not a "ratio" adjustment. You may understand more if you think it as a RING adjustment.
\\Of course RING adjustment is the silicon lottery.
\\No one is curious why SOC has four phases?
\\(X570 Godlike, Buildzoid also mentioned this)
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