Originally Posted by business_kid
I'm in electronics hardware. Rule no. 1:
"If it ain't broke, don't fix it!"
Buzzing caps can cause noise but they change as they warm up so they are easy to identify.
Power supplies can be audible at low current. So can transformers. Forget it.
Yes, that sound is in TV, radios,... I was worried because i noticed this sound first time in two years and i don't think it was there before.
Computer, otherwise, is working just fine and my guarantee paper is not valid any more so i won't take it to my computer dealer/service until it brakes - if ever.
I think it is not HDD, tough i do backups just to be sure - it might be buzzing caps.
Thank you guys