Question I dont know why my computer keeps crashing

Jun 21, 2020
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Motherboard: A320-a Pro Max
CPU: Ryzen 5 1400
Ram: 8GB
16GB (dual slot) (ddr4)
GPU: Radeon RX 570 Series
OS: Windows 10 64 Bit
Computer Case: antec nx 400
( no extra fans exept anects main, Cpus and Gpus) I recently installed the 16 GB in I had the 8 for som time. After I installed the 16 my computers GPU started overheating and crashing 4 or 5 timesw until I realized that I can manualy turn up fan speed using 2020 adrenalin software (newest version installed). BUT it still crashes evry hour or so. and I also dont like that the fans run so high.

I have ryzen master and have been monitoring CPU Temp and it never rises above 55 even on GTAV but my GPU goes to 75 on automatic fans then crashes.

After Crashing sometimes it goes from the Bois screen into recovery mode then I restart it again then it works. Sometimes it Makes my screen go static and then I cant see anyting

I should also add when it crashes my screen goes Brown and then it says no connectition as if somoene had unpluged the HDMI
I use a 60HZ monitor with HDMI at 1360x768

Can you help in anyway?