Parallel Miner PSUs, Breakout Boards and ASIC Boards

Enterprise server PSUs deliver kilowatts of 12 V DC cheaply and reliably, and breakout boards convert their edge connectors into standard mining connectors. The combination is popular because it is inexpensive, hot-swappable and easy to source in quantity.

Check three things before buying: rated output at your input voltage — many units derate heavily on 120 V — the connector standard on the breakout board, and whether the unit needs a fan-speed or enable jumper to run outside its chassis.

Current, not power, sizes conductors. At 12 V, a 3,000 W load draws 250 A, distributed across multiple leads. Use the manufacturer's specified gauge, keep runs short, avoid daisy-chaining, and never split a single lead to feed two boards. Warm connectors are a warning, discoloured ones are a failure.

Terminate properly: correct crimp tool, correct lug, correct torque. Most DC failures we see are terminations, not cable, and they show up as intermittent hashrate loss long before anything melts.

An ASIC consists of hashboards carrying the mining chips and a control board running firmware. A dead hashboard drops a third of the hashrate on a three-board machine; a dead control board stops it entirely. Both are field-replaceable and both are widely available for common models.

Repair economics are simple: if a replacement board plus labour costs less than a third of the machine's market value and the rest of the unit is healthy, repair. If chips are failing across multiple boards, the machine is telling you it has been run hot for a long time — sell it for parts.

Under ten machines, keep one PSU and one fan set per model. Ten to fifty, add a hashboard and a control board per model. Above that, hold roughly two to five percent of each critical part and track failure rates so ordering becomes predictable rather than reactive.

Standardising on fewer models is the cheapest reliability upgrade available: one spares pool, one firmware, one thermal profile, one set of technician knowledge.

Dedicated circuits sized to nameplate load with correct breakers, no domestic extension leads, no daisy-chained power strips, working smoke detection in the mining space, and a licensed electrician for anything on the AC side. Power down and unplug before touching any DC connector.

We supply PSUs, boards, fans and cable sets alongside machines so the power side is matched rather than improvised. Email the desk with your model and voltage and we will confirm exactly which parts fit.