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Dust, cooling and backup power: keeping local AI running

This dust accumulated in less than 10 days in an ordinary family apartment. Our rules for temperatures, cleaning, prevention, spare compute and backup power, so that local AI does not stop.

Dust on a PC power supply after less than 10 days

A warning for everyone running local AI at home or in the office. The dust in this photo accumulated in less than 10 days in an ordinary family apartment with two small children. We deliberately did not clean it, to see what would happen.

Now imagine what is happening inside MacBooks, Mac Studios, Mac minis and DGX systems.

Rule 1: monitor temperatures

Continuously log CPU, GPU, RAM and NVMe temperatures wherever sensors are available, and keep the historical data. Feed those logs to AI and ask it to analyze trends, taking room temperature and weather into account. Home temperature sensors make this even better. AI can help detect cooling degradation before it becomes a failure.

Rule 2: clean the hardware

Get an electric air duster with adjustable airflow. Inspect vents and filters monthly and clean as needed, perhaps every 1–3 months.

Power off first and follow the manufacturer instructions. Do not overspin fans or blow dust deeper inside. (Our 600 W blower is definitely overkill.)

Rules 3 and 4: prevention

Consider an affordable HEPA air purifier near the setup to reduce airborne dust. Every 1–2 years, depending on conditions, consider professional internal cleaning and a cooling-system inspection. Prevention is cheaper than downtime.

Hardware failure means AI downtime

Imagine a Mac Studio fails and spends 1–2 weeks in repair. Without spare compute, AI workflows stop, and the business may stop too. Back up the data, and back up the compute capacity as well. Redundancy is not a luxury when AI runs the business.

Our solution: a dedicated AI room

We are moving the entire local AI setup into a separate basement room. From our observations, a comparable dust layer takes roughly three years to accumulate there, not ten days. Humidity, airflow and temperatures will still be monitored. There is a reason server rooms prioritize cleanliness.

And a final note: a spotless apartment does not mean the computer is safe. An always-hot, powerful computer may have been collecting that dust all along.

Backup power

Battery cells for the backup power system being assembled

Local AI benchmarks and real-world use often overlook backup power. A reliable local AI system needs equally reliable, powerful backup power. We are building ours ourselves.

What this means for a Box customer

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