Coastal Humidity and Miner Uptime in Ulsan
Intake moisture correlates with boot failures we log at coastal hosting sites — patterns from summer assessments along the Ulsan shoreline.
Ulsan operators face a specific constraint: marine humidity that spikes overnight while PDUs may still cycle for tariff schedules. Our intake logs from 2023–2025 show a repeatable pattern worth documenting.
Night humidity spikes
On nights when relative humidity at the intake exceeded roughly 78% for more than four hours, certain S19 and M30S batches showed delayed time-to-hash on morning cold boot. Units that passed the same protocol in winter needed one additional power cycle in July and August.
Not always the PSU
Technicians often swap PSUs first. In several cases our logs showed normal startup draw but firmware-reported fan errors that cleared after intake paths were cleared of condensed moisture. The boot failure was environmental timing, not immediate component death.
Ventilation changes that helped
Clients who added intake baffles to reduce direct marine air pull — without cutting airflow volume — improved morning boot success in follow-up assessments. We document ambient and intake readings so these changes can be compared before and after.
Assessment implication
When scheduling summer assessments in coastal Ulsan, we ask about overnight HVAC and PDU schedules. A 72-hour window that includes two humid nights produces more representative uptime data than a midweek slot with dry afternoon air only.
Planning a summer relocation? Mention your cooling setup on the contact form so we schedule an observation window that matches your risk period.