Jumping framerate, what could be the problem?

Question

Iron

Hello everyone, a difficult question has assembled a powerful computer on paper, everything should be fine, but in practice in all games there are friezes and few frames, but in synthetics everything is buzzing. What could be the reason?
Computer details:
CPU: Ryzen 5 2400g
Video card: Nvidia 2060 OC MSI GAMING
Motherboard: MSI B450 Gaming Plus (MS-7B86)
RAM: 8*2 ddr4 3400mg Pioner Viper
SSD: M2 520gb
Power supply: Termaltake 530watt 80plus bronze
Also Recently I noticed that the computer turns on from the 2nd attempt, and it cuts off for a very long time, tell me where to look I have already tried everything
UPD:
Added readings msi Afterberner
https://yadi.sk/i/UVcX097NX1RwUw
https://yadi.sk/i/ 9UEn90tIZirw3A
https://yadi.sk/i/TE4hr6K7vBGXVA

Answer 1

You took a non-gaming processor, and in heavy games it simply cannot cope. You can check whether this is so by monitoring the loading of the processor during the game, for this, either leave the task manager / resource manager open to see the graphs after minimizing the game, or use the specialized MSI Afterburner solution and display information about the loading of the video card / processor cores in the overlay.

Answer 2

As another person answered about timings and frequencies. As well as an option to change the motherboard, disable auto-overclocking to 3.9 and drive the processor higher. Although most likely the problem lies in the optimization. First, update the BIOS to the latest current version for your motherboard, then update the chipset driver and all similar ones, then take a look at the result. And so, just in case, I will say that the assembly is not optimal.