Just got done running a sweep with the current version Memtest, 4 test passes, all good cross all sticks.

Yes, the 'auto' feature fort he RAM doesn't turn on the XMP, so they are BIOS running at 4800 rather than the 6000 they are rated for.

As for your under voltage and wattage settings, I did not see anywhere to put those in the 'tweaks' section of the BIOS.