If one PC creates 20dB of noise and another makes 40dB, how louder is the second PC? Posted on May 1, 2023 By Charlielikes Also: what are humming, rattling and whining PC noises? Read Entire Article Tech Tags:'is, 20db, 40db,, and, another, creates, how, if, louder,, makes, noise, of, one, pc, second, tech, technology, the