The sound in my head is unusual.
The sound in my head is unusual.
While plotting the spectrum graph I noticed a minor peak at 4 kHz and a strong one at 8 kHz. Possibly a faint spike around 16 kHz exists but it gets masked by background noise, so I can't confirm. Regarding your audio setup, what devices are you using—speakers, headphones, a mixer, or an amplifier? You might want to increase the volume to at least half power to verify if the sound originates from the output. Certain signals can influence audio inputs, such as coil whine. If you disable the audio output, does the sound still play? If it comes from the output, systematically turn off each input until the noise stops. Identifying the problematic input will help you decide whether to disable it or investigate interference sources like nearby cables. If this isn’t an audio problem, focus on pinpointing the source—perhaps a stethoscope can aid in locating the sound (or a flexible tube can substitute).
It seems the issue isn't with the fans, just the fans themselves. I took them out, but they still complain. Switching off the optical drive helped a bit. The graphics card power was worse, so that’s likely the cause. It looks like the graphics card is the problem. You might want to check if certain graphics card models and power supplies work better together. Adding an insulated case could also help reduce noise.
Insulation can assist, yet the outcome largely depends on the card's design. Certain versions tend to make more noise than others, but you might also encounter unexpected issues with a very loud model. The noise level isn't tied to the power source, and even with a solid one, a B580 from another supplier may not produce the same sound.