Computer Making Noise. In order to understand what a person can do if their computer suddenly starts making noises, it is primarily essential to know where the noise is coming. Computers can also make noise if any components have come loose and are vibrating against the If the computer is in the wrong area, any noise from inside the computer can become amplified.
If CPU fan is making the noise, the issue might be due to heavy processing, processor heating up or changes made in If hard drive is making the noise, then the issue might be with HDD performance. You have to check the fan of your power supply that any dust is there in or not. It probably might be that your hard drive is failing or it can be any other important.
My computer intermittently makes a noise a bit like a siren!
I have cleaned inside the tower,so it isn't dirt on.
Computer fans can get pretty noisy, but there are a few things you can do to reduce the din. Whenever it makes a noise, the green bar jumps a little bit. When speakers get old, or when you've played music a bit to loud To see what kind of audio drivers you are running in your computer.