Had my pc on since this morning, and suddenly its just started to make a loud pitch humming sound. I straight away shutdown and left it for 10minutes. Just booted up now and its still the same for about 5minutes and now its got quieter but the humming remains.
Anyone know what it might be? I thought it just might be a component slightly lose or something?
Anyone know what it might be? I thought it just might be a component slightly lose or something?

