Sudden loss of power may suggest PSU problem, but in all fairness the squealing from the internal speaker would also suggest a major hardware fault.
It may be time to invest in a new motherboard bundle.
How old is the PC?
What is ransomware and how do I protect my PC from WannaCry?
Disney layout supervisor Rob Dressel on the challenges of visualising Moana
Siri vs Google Assistant
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.