I do not think so. but you can pull the board and mine with 1 board .
What speeds were you mining at :
1500gh = too fast
1400gh = too fast
1300gh = okay
1200gh = most of mine ran at this speed
1100 gh = or at this speed
Now i mine with 1 board
I want unsolder input inductor, disable the chip, and will try...
~1630gh, 0.67v-0.75v, 280w, ~5C-15C ambient temperature and 85C-105C on chips, fan 20
Can't you just disable the chip in the web interface under settings - HW Control - ASIC Control Panel?