My goal is to somehow nerf a antminer s9 harshboard to only use 1-5 asic chips using the standard control board. Anyone know how this could be done?

Firmware ? Any ideas welcome. The goal is to run it off low 5v power supply “solar setup” plug it to ck pool and let it ride . Geckoscience sticks have what 2 asic chips? Do not have the money to buy the gecko. I do have 1 s9 miner with three hashboards and 63 asic chips per board.

Any ideas to help make this happen with what I have please.