My friend did the wire triick to my 2100 B. On my A7N8X I have multipliers 6.5 to 17.5. Not certain about the voltage thing, although my vcore fluctuates .10v no matter where I run it. Was running mine at 200x10.5 but backed it off to 185x10.5. I'm running it at stock voltage now and the temp is lower. It works, give it a whirl - if you have a steady hand.
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)