Based on what I heard before there is someone successful running s9 with 110v but they disconnect two hashboard and only mine with one hashboard.
Don't run all hashboard with 110v because it can melt wires and connectors or if you don't want to have a burnt or broken power supply.
if you have the bitmain psu and it is good it can do around 800 watts at 110 volt and 1300 watts at 220 volt.
so you should certainly try one board at a time. you should have zero issues doing this.
once you test all three boards one at a time at a few speeds
say
+1th
stock
- 1th
which should be
4.7th
4.4 th
4.1 th
for each board
get back to us.