Question My PC keeps restarting ?

[Cristiano1234]

Hello! So I was playing War Thunder and my pc randomly shutdown by itself. After that it started the pc and when i joined the game after 30seconds image froze, but I still coud hear my friends talk in discord. After that I shutdown the pc and when I tried to turn it on again it kept restarting. I tried removing the ram and puting it back but it was pointless. Here is a video: https://quickshare.samsungcloud.com/icmiVOp8vGv4
PC SPECS:
-A320M S2H
-R5 3600
-RX550
-8GB RAM
-550W PSU
Please help me!!

 

[rgd1101]

brand and model of the 550w psu?

 

[Cristiano1234]

Specs:
CPU: Ryzen 5 3600
CPU cooler: id-cooling se-213v2
Motherboard: a320m-s2h
Ram: 8gb ddr4 2666mhz
SSD/HDD: 250gb
GPU: rx550 2gb
PSU: 550w RPC 55000AB (PWPS-055000A-BU01A)
OS: Win10
Monitor: asus

I should mention that I upgraded the CPU from an Athlon 3000G a couple days ago to the one I have now as listed in specs above, and my PC is almost 3 years old. The fans dont turn off and it worked just fine until yesterday.