I rolled the dice and flashed my D3, i have to say, this firmware has a lot more proper-like features than Bitmain's stock crap. Kudos there. I was wondering about the voltage, are you using numbers because you can't actually read/tell the real values?
I can't really tell the real voltage as I hardmodded my unit at first. I can't tell it per ASIC chip as I haven't measured, but for the total chain the voltage is something like this:
lowest: 7.3v
default: 8.2v
highest: 9.1v
I hope this helps