funny noises from my computer...

I've never really thought about it, but the noise has very possibly always been there....

often, when scrolling a webpage (I think) or doing from a light screen, to a dark screen on my computer (I think again ) I get this weird noise through my sound card... lol

and, I just realised (without my speakers connected) that I also get a noise from INSIDE my computer, when (for example) I switch from this mozilla internet window, and an MSN chat window.....

its weird!!!! its possibly even coming from the computer powersupply!!! lol

Ill bet its not your computer. Its probably your monitor, making different sounds when there is a dramatic change in color. Ive seen (actually heard :lol: ) it on TVs and monitors.

Look here: https://www.electro-tech-online.com/threads/pcb-toner-transfer.16601/
My wireless mouse beeps whenever a button is pressed, or i move it, or scroll it.

i have the same problem and im definitely sure that it doesnt come from the monitor. the beeps that i hear come from the internal buzzer of my motherboard.

I have an LCD screen, my CRT did it too...

Myne dosent do it but my old Grunding TV you can hear it a lot.

Wen you change chanels and the whole screen goes black i get an wiouw sound.

This is probobly the flyback transformer.And wen the screen goes black it has a much smaler load and the driving circuit lowers the freq. (Its suposed to do that to keep it at max efiency posible)

It aculy takes only 2 transistors and some resistors.It has an main coil that the transistors switch on/off and an litle one that senses wen for the transistors to switch.

These things can go up to 200W

These scrolling sounds do come through headphones. I'm not entirely sure why, but just about every computer does it.