hi GuyR....sounds like an over heating problem ,have you checked the system temps at all ?
it could also be your harddrive on its way out ,so be prepared for the worst and back up any important stuff to the second drive....
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This poetic animation about monsters is illustrated in a Van Gogh painterly style
How to get WWDC 2017 tickets
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.