Microsoft hit with class-action lawsuit over “unreasonable and excessive noise” from datacenter

Developer July 8, 2026No Comments

Microsoft finds itself on the receiving end of a lawsuit about “unreasonable and excessive noise” allegedly emitting from the tech giant’s Fairwater datacenter in Mount Pleasant, Wisconsin. The suit seeks compensation for damages, though the amount asked for is unspecified.

The Fairwater datacenter was unveiled in September 2025. At the time, it was the largest and most advanced datacenter. The site launched with NVIDIA’s GB200 GPUs. Each rack can process 865,000 tokens per second.

Running those GPUs makes a lot of noise. Microsoft states that the noise levels meet levels required by local ordinances, but the company has taken additional steps to reduce noise.

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Microsoft shared the following update on June 18, 2026:

“Our engineering team and consultants on-site investigated the source of the sound, conducted tests, and put noise mitigations in place. Several neighbors confirmed what our independent monitoring showed: that these mitigations fully resolved the issue. We continue to work on short-term mitigation, and over the next several months, we will also install additional sound reduction components and continue to monitor sound at the site.”

Despite the measures taken by Microsoft, the lawsuit about the noise from the datacenter was filed on July 1, 2026.

The lawsuit claims that Microsoft has not taken the proper steps to reduce noise in the surrounding area:

“Defendant has failed to follow proper industrial practices to prevent the offsite emission of noise, and has failed to absorb, capture, mitigate, and/or prevent noise from escaping its Data Center, thereby invading the homes and properties of Plaintiffs and the Class.”

The plaintiffs of the suit claim that a “low hum” of infrasound emits from the datacenter and that the sound cannot be measured easily on the decibel scale. Our colleagues at PC Gamer highlighted that one plaintiff claimed “the constant noise [affected] his sleep.” The filing states that the noise is “not only excessive, but consistent and pervasive.”