Question It turned off

[Immortalg]

Hi there i live in canada I invested in 3800x 2060 super ripjaws 5 32gb 3600 with cas 19 and msi gaming edge wifi mobo it was all going good for a month but it is second time today(i ignored the first one) today when i was playing countrr strike..... its screen turned off pc was still running and the fans went to full speed without signal to pc... had to turn it off from switch. i just started the game (although have played hours continuouslywithout issues) so heating doesn’t seems to be an issue... by tge way i have 3 fans on front two on top and one at back... cpu cooler is stock.... can someone tell me what was wrong with it had how to prevent it....

 

[Immortalg]

Please give me something it happened again just now