This article lists some fixes for the buzzing noise coming from a laptop charger when it is plugged in. Normally, laptop chargers do not make a noise while charging a laptop. However, some users ...

HDMI is a modern standard for the transmission of video tracks and multi-channel audio signals. PC monitors, (smart) TVs or hi-fi and surround systems rely on this reliable and user-friendly ...

I'd suggest buying a new fan for the cpu, replacing the fan, and then seeing if the noise it gone. DO NOT try to run the cpu without the fan on it.

I'm using a Dual 1.25 Powermac connected to a typical VGA monitor using those ADC-to-VGA adaptors that came in the box from apple.<BR><BR>The monitor is making a buzzing noise now. Using the monitor ...