Voltages I remember trying
DRAM: 1.4, 1.42, 1.45, 1.46, 1.48, 1.5
SOC: 1.1, 1.1125, 1.125, 1.1375, 1.15, 1.1625, 1.175, 1.1875, 1.2 although I haven't tested as much above 1.15 as at 1.15 and below it.
VDDG: 1.05, 1.075, 1.1, 1.125 (board defaults to 1.05 it seems)
VDDP: .900, .910, .915, .920, .925, .940
ProcODT: between 30 and 42.
All of these settings booted, but it's confusing as to which settings have actually helped stability and in which combinations, or how much. Sometimes my settings will cause display driver resets or they'll cause full system resets, usually one group of settings won't cause both. Or maybe I just haven't tested long enough once I start getting one error to see if I get the other.
Also tried GDM on and off, PDM on and off, neither seems to make any difference here.
I haven't tried changing any of the CAD_BUS block impedances or RTT settings, and most of the settings in the advanced tab are not exposed in BIOS.
Update: From everything I've read 1050 mV CLDO_VDDG is actually way too high. I'm starting to wonder if this is the cause of my issues. I had tried using 900 mV before but it didn't boot. I'm now doing an AIDA64 cache stress test at 1.1 V Vsoc, 1.4 V Vdimm, 985 mV CLDO_VDDG, and 912 mV CLDO_VDDP which I got from the overclocking guide linked here
. I'm only 5 minutes in but it seems fine so far. EDIT: NOPE, I was actually at 1.2 V Vsoc, my motherboard sometimes rejects the voltage settings I give it...
I get the feeling that for the most part higher voltages don't make sense if I can POST and boot. I have SOC LLC set to the maximum this board allows, and I've read that auto settings is just one step below that anyway.