BITMAIN APW12 Manual page 6

single hash board will reduce the nominal power draw by a third. Removing two hash boards will
reduce the nominal power draw by two-thirds. Removing one or more hash boards will allow the
remaining hash board(s) to run at higher hash frequencies and increase hash rate without
exceeding power limitations. If hash boards are removed, care must be taken to manage proper
airflow through the remaining hash board(s). Air must flow through the narrow channels of the
hash board heatsink fins, not above or around them. Fill any cavities or gaps that could allow air
to flow around the hash board's heatsinks. If one or more hash boards are removed to limit
power draw, the hash boards that were removed can be paired with their own PSU, control
board, enclosure, and cooling equipment to create another 120V mining rig. If multiple rigs are
being powered in the same location, care must be taken to spread the rigs out among available
circuit breakers to avoid overloading circuit breakers.
Document Revision 3
5
2024-02-01