It might be coil whine. Essentially, coil whine is the audible effect of components vibrating when under high load / high power. It can sound like a whine or a rattle or a vibration. This happens with many components, but often it's not loud enough for us to hear or at a frequency that we don't hear well. These two pages have more explanation and some tips to reduce the effect: Unfortunately, you may not be able to eliminate it to your satisfaction. Much depends upon how you use your computer, the acoustic qualities of your room, other ambient noise, etc. I once had a Netgear router whose coil whine was particularly annoying to me. I found that the volume varied among units of the identical model. I tried two or three other units of the same model in the store, and found one that I couldn't hear. Even though they were the same model, same components and power supply, two or three of them were loudly annoying to me, but the last one was inaudible.
Has anyone else experienced a very quiet, but noticeable staticky / buzzing sound coming from their 7610?This is the first time I've noticed it, in a very quiet room I heard an annoying pulsating, staticky sound coming from the laptop. It sounds almost like a cell phone interference with speakers, a high frequency pulsating sound. It almost sounds like a spinner hard drive writing data, but very very quiet. We know these laptops don't come with spinner hard drives. Anyways, it is most audible if you put your ear underneath the vent on the right side (Numpad side). The buzzing changes tones when I touch the touchpad. It's more noticeable and louder running on battery power. With the AC adapter plugged in, the sound is significantly less pronounced and barely audible but still present. I'm not sure if this sound was there before or after performing the grounding wire soldering for the touchpad related issues. Touchpad is fixed, but maybe I'm being paranoid with the sounds. Can't hear it when the fans kick in, of course. Can someone else listen to their laptop and see if they hear anything also?
Dell Inspiron 16 (7610) Static, Buzzing