With my DDR5 6000 CL30 kit I see this with expo
5600 MT/s Hynix a-die - just shared for information purposes. I mentioned earlier 100ns is far too high.
Daily stable / gentoo linux compiler stable
I really have no knowledge about overclocking. I do not tune it to dead.
Other settings are windows 11 pro 24h2 stable. But will crash the gentoo compiler. = unstable.
I tried to figure out a year ago how to get all those windows test software and how to use it. Useless in my point of view.
When my gentoo crashes during compiling. And it will - I know its unstable. I can play for 12 hours a day in windows 11 pro without any crash with those "crash" settings.
AM4 also had something around 55 - 60ns afaik for my Ryzen 5800X ~ 3 years ago. (all screenshots already deleted - value to the right - on the first row.)
I only change one setting and test it for two weeks. If something wrong I revert via uefi profile on my flash drive for uefi updates. (asus and msi have a feature to save all uefi=bios settings to a usb pen drive)
e.g TCL 30 = won*t work - i revert = does not boot - needs more voltage most likely. I do not want to go voerr 1.35V DC yet.
No, there is nothing on the 64 (plus ECC) data lines between the IMC and the DRAM chips, except in certain types of server memory:
FBDIMM DDR2 (Fully Buffered)
LRDIMM DDR3/DDR4 (Load Reduced)
MRDIMM DDR5 (Multiplexed Rank)
May I ask. Are you 100% sure?
It says "redriver" / clock improve circuitry. That means it some sort of logic stone which introduces extra clock cycles. Which introduces latency when you have similar stone without that circuitry. I talk about extra clock cycles.
I do not think DDR2 / DDR3 / DDR4 had those redriver circuits. I think we are discussing CUDIMM no UDIMMS.
In my point of view the article lacks information for myself
How about two full schematic for regular 5600MT/s udimm vs Cudimm one. If possible with full datasheet for all parts. I really doubt the basics have changed in past 25 years how logic stones operate.
without that I can not agree or disagree on "opinions". Which is very bad as the schematic and datasheet for every part in the schematic for both udimm and cudimm module would make it 100% clear.
A simplified block diagramm where most of the information is left out - does not answer it. Datasheets answer it 100% + with corresponding schematic which is a proper schematic.