I've been busy rebuilding my computer for a while now, took much longer than planned but it is up and running as it should for the moment.
Have the CPU under a water-block, Alphacool XPX Eisblock and can start to experiment a little more than before when running a stock cooler and HD5450 temporarily before I got the upgrades ready.
I notice my CPU will boost to 4.3Ghz all core or more when running for memory errors with TestMem5 and such. I've even seen boosts up to 4.475Ghz on single cores when even less load is on the desktop. It seems to stick @ 1.360V under all core load. It behaved much the same as with the stock cooler but it had a half botched TIM application so I hope it managed better with the Eisblock the second try around and I noticed some better boost performance probably because of the lower temperatures it gives.
Either way I have TestMem5 "stable" 3966Mhz XMP running with 1.200V. provided I don't have them get too hot, temperatures on the sticks can get warm if not cooled somehow.
That's maybe why my 4000Mhz XMP was not stable in Windows even though it managed without a single problem in using a USB-stick Memtest86 to run all 4x8Gb like that on the table while I rebuilt(not as enclosed or intense workload).
Kept getting random errors in HCImemtest and I tried various things but didn't really find the problem. I only got worse and worse result the more I tinkered and fresh clear-cmos with optimized defaults & XMP enabled and putting 4000Mhz was most useful.
The BIOS options are a little mess of to find in the Aorus Xtreme BIOS.
They are in the "tweaker", "AMD CBS" & AMD "OVERCLOCKING" menus located in their own submenus and many settings are duplicated here and there.
I had trouble mostly with the voltage settings that can be found all over the place to be adjusted in each their own way in the different sub-menus.
Some need Hex-values others type-in mV (like 1000mV), others are offsets. No particular consistency yet I've managed to get my head around.
All settings weren't available under the tweaker menu.
I hope to figure out which voltage is for which part in the BIOS so I can set them accordingly.
EDIT: CinebenchR20 boosts 4.2Ghz all-core @ ~1.320V for ~4997pts. 5059 etc(without all the applications in the background)
Gigabyte X570 AORUS XTREME, Ryzen 7 3800X 4.45Ghz, 4266/1900 MEM/FCLK, 188.8.131.52.76.tRFC 650 1T 1.58V
4x8Gb Kingston HX434C19FB2K2/16 3466C19 1.2V (Micron E-die 16nm)
OLD: Biostar x470GT8 Ryzen 7 1700 @ ~4.0Ghz CPU, 3200Mhz RAM ...
Last edited by Nighthog; 07-19-2019 at 05:33 AM.