To be clear about PWM section, it is 8+2 phases for CPU/IMC.
Rest as stated by Caveman!

Power section is one of the strong points of GBT top end boards. My DQ6 uses same design and there is no way of any voltage fluctuation up to 1.88V!

Also if BIOS will be similar to what we have on DQ6 then max CPU vCore will be 2.05V