RAM Timing Optimization Help

[ENTERPRISE]

Hey guys, 

 

I am not new to tweaking timings for RAM for the best latency, but I am not pro and need some help. Since updating my BIOS and upgrading to a 9800X3D, I have a few new RAM options in the BIOS regarding the DDR BUS Configuration which has thrown me a little.  

 

Below is what I was used to seeing via my previous BIOS/CPU, see all settings in the red box 

 

 

Below is what I have now, I had to make some "best guesses" for the new options I am not used to seeing.  

 

 

I am not used to have two entries each (pull up/pull down) for the "Processor ODT Impedance", "Processor DQ Drive Strength" & "DRAM DQ Drive Strengths". I made a guess based on prior values and set pull up/pull down to the same ohm rating. No idea if "pull up/pull down" should be the same.

 

I also have also not seen "Processor CS Drive Strength" or "Processor CK Drive Strength" before, hence why I left these on Auto for now. Any suggestions?

 

These are my current settings in Zen Timings, everything is stable aside from the DDR Bus Configuration related settings as I am about to test these.

 

 

Looking at Zen Timings and seeing some unfamiliar ohm values, I have to assume that "ProcOdtPu" and "ProcOdtPd" relate to the settings above in the BIOS that I left on auto, but the name suggests it is not these and would relate to "Processor ODT Impedance Pull Up" & "Processor ODT Impedance Pull Down" I have set values for these that are different. Any ideas?

 

Also happy to have any other feedback I will eventually attempt to get Gear Down Mode disabled and tweak down voltages but one thing at a time.

 

My RAM is Dual Rank Corsair Dominator Titanium which uses Hynix IC's. 2x DIMM config.

 

Cheers,

E