Nice bro. What are your OC for CPU and RAM?
Cooling?

not much of a difference between these 2 right now then.

I just ran the bench twice earlier after seeing this.
https://www.3dmark.com/3dm/63181883  this is the better run

I don't really think with it's length (too short) and the cpu utilization (not even 100% when running full threads despite power limit not hit and cpu well below 90C) this benchmark is any good to be fair.

Nice!
1.50V can or not?
Try to match this B-die DR kit  https://www.gskill.com/specification/165/29...B-Specification

Yeah you're right, manual RTL doesn't work on Z590.

32GB? try go command rate 2T. probably can go higher. Yours looks like it's limited to the IMC.

ah right, forgot you're on 11th lol.
maybe up the trfc and loosen the RTL. you dont really gain very significant latency from there. better to tighten the primary first then only push the secondary.

cant hand tweak but i think owikh shown before in some older posts where to set so that you can set a base for the memory to train from. Well you mobo is a pretty good one. such high read lol. Mine only manages read 61K but my write is at 66K (MSI crappy bios).

odd pairing

well, generally it's better for the bios to train the values anyways. Dont think Asus will retrain like MSI which will ruin all the effort at random.

Well, as explained by owikh before. the trained RTL value is affected by SA/IO/DIMM voltages (too high or too low) and all the timing values... so if not done right, the RTL IOL will be weird. Thus it can be a sign of instability.
you do have some odd settings such as the 4 TRDWR values ideally should be all same, like 12-12-12-12.

i think what ctskl say weird is that although you fulfilled the rule to not be more than 1 apart but it normally looks like this:

CHA D0 40
CHA D1 41

CHB D0 40 
CHB D1 41

cant see your IOL to judge further.
Maybe you can copy some of those sifu's values and try. Your mobo is pretty similar to theirs, maybe can even ask for a bios profile. Im pretty sure they are willing to share.

also bdie you can get away with lower SA/IO/DIMM voltages so sometimes having them too high following from your previous DJR settings, it may cause instability. try 1.4v-1.45 for 4266.. also Bdie is quite temp sensitive so the quality of the ram's heatsink matters too (which is why TridentZ does quite well).

yeah this kind of settings have to find sweet spot, cannot simply brute force. especially by cranking up voltage.

Sometimes your kit will also will not like certain ranges. Like my B-die struggle to get to 4133 17-17-17-37 as that was my initial target. already put voltage to 1.5V but it just cannot post... brute force the training then will be super unstable anyways. But then 4266 17-17-17-37no issues at 1.4V  rock stable.

maybe you can try skip 4266 to 4500 to tune.

just use bandwidth to compensate with the latency and test it with games to see which gives you better performance. around 50ns is damn good if you can reach 70+K.

No point going very low latency but bandwidth also low. Need to find the balance. iinm if you playing with gear2, better go for 4500mhz+ else best you stay at gear 1 and tighten 3866mhz to 15 or 14.

you have to run your own gaming benchmark liao yeah.... IMC luck, mine also not that good. need quite alot of SA/IO voltage to go further, albeit my 3200c14 seems to be a pretty decent kit.

oooooohhhh it does much more than you'd think. This is why despite AMD being the top in 1080P gaming, it actually kena beat down in 1440P and 4K due to bandwidth and latency.

the ram can squeeze about another 1-5% wan... even in a gpu bottleneck situation. That's why it is quite significant, especially those competitive 3dmark port royal guys.