u/77xm

First time poster. Has anyone heard a sound like this coming from their PC before? Or maybe able to inform me of what it could be? I’m not very knowledgable on computers but the noise is freaking me out a bit.

I bought the PC around 2-3 months ago and it’s been great, only started making this noise recently and it’s not all the time, usually when it’s been on for longer than 5 hours.

I turned the PC off at the end (it didn’t shut itself down).

Any help or advice is appreciated!