Improper startup procedures create avoidable stress on hydro boards, pumps, seals, and electrical infrastructure. The safest rollout is a staged one.
The startup sequence stays simple: verify the site, circulate the fluid, energize the electrical system in batches, then stabilize and monitor.
Key Takeaways
- Do not energize ASICs until the cooling loop is circulating and air has been bled from the system.
- Power miners in small batches so you can identify abnormalities before they cascade through the site.
- Treat the first 72 hours as a monitored stabilization period, not a finished handoff.
Deployment
Step 1: Pre-Power-On Safety Checks
- Inspect water hoses, fittings, and electrical cables for secure terminations and visible damage.
- Confirm coolant level, pH, and conductivity before the pump ever starts.
- Verify environmental conditions are suitable and that service clearances remain accessible during startup.
Deployment
Step 2: Prepare the Water System
- Open inlet and outlet valves and confirm bleed points are accessible.
- Start the coolant pump without powering the ASICs and watch the pressure rise gradually.
- Bleed trapped air until the loop reaches the target 8.0-10.0 L/min flow range with stable pressure.
What not to do
Do not energize miners to 'help diagnose' a coolant issue. Startup faults are easier and safer to isolate while the ASIC load is still offline.
Deployment
Step 3: Energize the Electrical System
- Switch on the PDU only after confirming stable 380-415V three-phase supply and proper grounding.
- Bring miners online one at a time or in small batches so you can watch startup behavior in real time.
- Monitor coolant temperature, pressure, and miner dashboard telemetry as each batch joins the loop.
Deployment
Step 4: Stabilize and Document the Run
- Adjust valves as needed so pressure and flow remain balanced across the fleet.
- Inspect for leaks, vibration, unusual motor noise, or sensor failures once miners are active.
- Log startup pressure, temperature, power draw, and early hashrate behavior for the first 72 hours.
Deployment
Safety Protocols That Travel with Every Restart
- Follow the equipment manual and wear insulated PPE around live electrical and pressurized fluid systems.
- Keep cords and electrical devices clear of standing water and use GFCI protection where appropriate.
- Never leave a startup sequence unattended, and keep fire extinguishers plus emergency shutdown access ready.
- Train every operator on hazard recognition, emergency response, and cabinet-level shutdown points.