Q. Why is my PC humming?
A. Because it doesn't know the words.
OK, hum is mostly from moving parts like fans. Since load can change the speed and more, it can change the sound. Same for the HDD.
ello,
I bought a new HP Desktop Pavilion 570-p0140 today. When I started the computer, I could hear a medium level humming noise (like a 6/10). It seemed to be coming intiially from the hard disk. When I would visit websites like weather.com or nytimes.com or download/install software, the noise would rise (6/10 - seemed like the fan) and then calm down with the ocassional murmur.
I owned a HP Pavillion desktop from 2010-2017. It was very quiet for atleast the first year or two. So, I am bothered that a new desktop would make this kind of humming noise.
I called HP tech support and was old that since the casing of my new pavillion is smaller than the one before and the AMD A10 (3.5 gHZ) is a faster processor, the heat inside would increase when I visit websites with a lot of scripts running since the faster processor would crank up the speed to run all those scripts. They also installed updates for the BIOS and Graphics card, but the sound is very much there.
Questions:
1) Is a humming sound during downloads (6/10) and a low level humming sound(3/10) otherwise normal for my desktop?
2) If no, what steps can I take to discover the root cause?
Thank you

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic