What voltages and tweaks have you done? I can boot 1933 as well but haven't tried to put any effort into stabilizing it. That might motivate me to use my good bdie kit
as well!
Everything should be there in my screenshots, I am using VDIMM 1.520v.
I cannot get 1T stable at 3800 or higher, so I use 2T. There is barely any difference and it provides better latency and performance than 1T Gear down mode on.
Key is to get ProcODT and CAD settings correct. It's a bit of trial and error and dual rank dimms need different CAD settings than single rank. Basically lower ProcODT is better for higher FCLK, so you want no higher than 43.6 at 3800Mhz, and lower at higher frequency. Try for mine (34) or the next one up.
This cheat sheet here will help you dial in memory stability and is what I have been using. Along with patience and experimentation of changing the ProcODT and CAD bus settings. If TM5 1usmus throws up a particular error, use the cheat sheet to debug the error and change the approapriate setting/s in the BIOS. Credit to Veii from overclock.net, it's his sheet.
https://docs.google.com/spreadsheet...9SYEq2RElJ5T6Hcx9WdReTsnIWw/edit#gid=43560676
EDIT - Make sure when you download TM5 you load the 1usmusv3 profile first, one time thing then future runs will always use that profile. The cheat sheet debugs the errors for that profile.