Field Notes

Guides, observations, and technical notes on mining hardware and power supply design from our Busan lab.

Articles rooted in hands-on testing — voltage events, PSU failures, cable standards, and miner selection for Korean electrical environments.

14 June 2025

Single-rail power supplies sag below tolerance when residential voltage drops during peak air-conditioning hours. Here is what we measured in June.

2 May 2025

Factory wattage ratings assume ideal conditions. We explain how to translate nameplate numbers into real breaker requirements.

18 April 2025

Thermal imaging during on-site audits reveals failing connections weeks before they cause hardware damage.

7 March 2025

Why we use 0.05 TH/s as our minimum review threshold and what it means for PSU selection in small setups.