I have a PC that produces audible noise/screeching correlated to network activity. The noise is high-pitched and somewhat difficult to locate, however it seems to be coming from the power supply. It's clearly audible over the PSU and CPU fan noise. Has anyone experienced this before? Does anyone know the cause and/or solution to it?
- Ethernet cable unplugged: white noise
- Ethernet cable plugged in: noise with HF components
- Ethernet activity: noise with varying HF components
More info: It's a very cheap 350W ATX PSU that has run continuously for 2 years. It's also going to get replaced tonight by something a little better.