New PSU makes strange sound, coil whine?
by MirceaKitsune from LinuxQuestions.org on (#5T5JM)
I got a brand new PSU and it's working great so far. However I noticed that after an hour of use it started making a weird noise, very similar to a mechanical HDD that's working except louder. Initially I thought it was its fan, after looking the issue up better I was introduced to coil whine which seems to be more accurate to what I'm hearing.
https://www.sndup.net/gvf6
Took this 10 second recording of the sound with my headphone mic: Please give it a listen and let me know if it sounds like coil whine to you. Is that normal and safe?
I noticed it occurs while the computer is idle: If I start a Blender render to solicit the CPU, that creaking goes away until the render finishes. That's particularly odd as you'd expect it to do such things under load.
https://www.sndup.net/gvf6
Took this 10 second recording of the sound with my headphone mic: Please give it a listen and let me know if it sounds like coil whine to you. Is that normal and safe?
I noticed it occurs while the computer is idle: If I start a Blender render to solicit the CPU, that creaking goes away until the render finishes. That's particularly odd as you'd expect it to do such things under load.