Ryzen - Return of the Jedi

[Formula350]

Try vtt @ 50% vddr

I presume that's the "DRAM Channel VREF Voltage", since that's what shows as being 1/2 of default DRAM Voltage.
IOW, DRAM Voltage at default is 1.2V, and DRAM Ch VREF V at default is 0.600V
So being I'm running at DRAM V @ 1.36V, I should set VREF V to 0.725V?

What's a tad alarming is the stupid MSI Command Center (which I don't use), shows even 0.610V as being "red", even though it's Max is 1.235V


I only ask, because when I googled what VTT the best example explaining stuff for both Intel and AMD says:

"Termination voltage: This is the voltage that is used to feed the termination logic inside the memory chips. By default, it is set at half of the VDDQ/SSTL voltage (“memory voltage”). This option, if available, will be listed as “Termination Voltage” or “DRAM Termination.” Pay attention, because this voltage with AMD CPUs is called VTT, but with Intel CPUs VTT is the processor’s secondary voltage (see previous page)."

Unfortunately on my Titanium all I have for DRAM voltages is:
DRAM Voltage: Default 1.2V / Mine 1.35V
DRAM VPP Voltage: Default 2.5V / Mine 2.5V
DRAM CH_A VREF Voltage: Default 0.6V / Mine 0.6V
DRAM CH_B VREF Voltage: Default 0.6V / Mine 0.6V

Oh how I miss the days when terminology was much simpler

EDIT: Yea, doesn't sound like that is the one I want on my motherboard.

"Reference voltage: The memory reference voltage “configures” both the memory controller and the memory module with the voltage level that separates what is to be considered a “0” or a “1,” i.e., voltages found on the memory bus below the reference voltage are to be considered a “0,” and voltages above this level are to be considered a “1.” By default, this voltage level is half of the SSTL voltage (a.k.a. 0.500x), but some motherboards allow you to change this ratio, usually through options like “DDR_VREF_CA_A,”"

Also I believe earlier I may have mis-spoke on SoC being CPU-NB. I believe CPU-NB they've kept as the IMC label, and the new "CPU 1P8 Voltage" is the SoC, which is, of course, 1.8V heh

EDIT2: For shiz and giggles I dropped the CPU-NB back to default, and dropped the DRAM Voltage to 1.3V. Right off the bat Windows bootloader threw a kernel issue, about not quite sure what. Either way it had the option of Enter to continue and F8 for boot options. So I assumed instability, but whacked Enter anyways. It boots, surprisingly. In windows, no crash yet, more surprisingly. I check it is indeed running at 1.3V (1.296), so I run the Cache stress. It doesn't instant-fail like normal, and actually it managed to last for 2 minutes before failing! That's even at my 14-15-14-35 timings haha
If you weren't already Chewbacca I'd be asking to cut off your legs off at the knees, paint you green, give you some pointy ears, and carry you on my back while I overclock. Then you'd inevitably sigh, and mumble how I'm not teachable, that I'm too old. That's when a whispy-blue Fugger would walk in randomly and say "So was I, if you'll remember". [/end scene] lol (Yea I know that Ben's line I quoted wasn't in response to the "Too old" Yoda comment, don't worry everyone!)

Thanks, I've also checked the manual but couldn't understand if it's also possible for the CPU header to have DC regulation, as that line seems to confirm only the chassis headers. That's why I've asked.
In the MSI's B350 Tomahawk's manual screenshots it seems possible to use DC both for CPU or chassis, but the Asus doesn't have sub-menus explained.

I would suspect that it has DC ability on the main CPU and Pump headers. I only have the MSI X370 Titanium, but all of its fan headers are PWM & DC capable.