Thanks again for suggestions.
Naturally I mentioned full load voltages.
I will clean the area and redo the mod #2.
Unfortunately, even with OCP mod using 22 ohm, I have solid screens, mostly completely grey and PC full locked.
This evening I try again and I hope.
About Fermi, it seems will be very fast but produced initially in low numbers (high price) and warm like a little oven
I do hope that it will mount a Volterra or similar I2c programmable VRM controller.

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