Why 0.05 PH/s Is Our Minimum Review Tier
How hash-rate scale changes cooling-path risk and why smaller hobby rigs fall outside our standard assessment scope.
At 0.05 PH/s, a facility typically runs enough parallel hash boards that a single cooling mistake does not just overheat one machine — it shifts inlet conditions for entire rows. That compounding effect is what our cooling-path methodology is built to catch.
What changes above 0.05 PH/s
Shared inlet air. Below this tier, one rack’s exhaust rarely warms a neighbor’s intake enough to throttle hash. Above it, cold aisle temperature rises measurably when rear exhaust is misdirected.
Fan curve aggregation. Operators watch aggregate RPM dashboards. At scale, two stalled fans on one rack can hide inside fleet averages while junction temps on adjacent boards climb.
Duct static pressure. Facility exhaust systems behave differently when pulling from dozens of high-flow shrouds. Plenum leaks and damper settings matter at hall scale.
Why we decline smaller engagements
Our report format assumes rack-to-rack comparison. A single-rack hobby setup does not produce the cross-row data that makes remediation sequencing meaningful. We refer those operators to manufacturer support channels or local repair benches.
When to book before you cross 0.05 PH/s
Operators planning expansion from 0.03 to 0.08 PH/s in the same hall should book an airflow redesign consultation before racks arrive. Duct and baffle decisions are cheapest before hardware is mounted.
Measuring your tier
Sum active hash rate across the hall you want reviewed, not nameplate capacity of idle units. We verify declared tier against on-site pool or controller readouts during intake.
Request an assessment with your current and planned hash-rate figures.