it could be a fan dying - take the cover off and listen for where the noise is coming from. If it is the one over the processor do not let it die either change it yourself or get someone to do it for you.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This 2D animation about monsters is illustrated in a Van Gogh painterly style
Siri not working? Try these troubleshooting fixes
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.