Been trying to find a definitive guide for this processor too. In my BIOS I can change the multiplier to x20 (or x21) and a BCLK of 170 gives 3.4GHz. What is your multiplier at 190 BCLK?
In my BIOS (a Gigabyte board), I can change the memory multiplier down to x6 and the uncore frequency down to x32 to reduce those components.
I might look on youtube instead.