EVGA SuperNOVA 850 G3 Power Supply Investigation

Migliaccio & Rathod LLP is currently investigating the EVGA SuperNOVA 850 G3 power supply for widely reported excessive noise. EVGA advertises the Power Supply as being “whisper quiet” and “completely silent during low to medium loads,” yet the user experience is often dramatically different.

Some users have complained of a loud, high-pitched squealing sound emanating from the power supply and whining for a few seconds at a time. The sound can likely be attributed to coil whine, which is the vibration of the coil as power passes through it. Every inductor in every electronic device will produce some amount of coil whine, but in a faultless device, it should almost never be audible to the human ear. The high-pitched sound is documented in dozens of reviews on the product site, yet EVGA customer service generally maintains that the noise is a result of power issues within the user’s residence, or that the issue is either insufficiently troublesome to warrant a replacement power supply.

Other users complain of a buzzing noise, similar to the sound of a hairdryer or jet engine, coming from the fan; the sound is so loud that many users can hear it through a secured headset. The noise often becomes even louder when “Eco Mode” is enabled, which is intended to increase the life span of the power supply’s fan by only running the fan once a certain temperature is reached. For a handful of users, the loud noise becomes so unbearable that some stop using the power supply altogether.

Has your EVGA SuperNOVA 850 G3 Power Supply exhibited a high-pitched whining or exceptionally loud buzzing sound?

If so, we would like to speak with you. Please complete the contact form on this page, send us an email at [email protected], or give us a call at (202) 470-3520 for more information.

Committed to Consumer Protection

The lawyers at Migliaccio & Rathod LLP have years of experience in class action litigation against large corporations, including in cases involving defective products. More information about our current cases and investigations is available on our blog.