Crashes on a new PC

[IrugaGISS]

First of all, I want to say that i'm not a English native so maybe I will have some translation errors, hopefully I can explain myself.
2 months ago, I built my pc, with the following specs:

• AMD Ryzen 7 3700x (with stock cooler)
• x2 8gb gskill trydent z 3600
• MSI rtx 2070 Super ventus OC
• Asus Prime x570-p
• Crucial p1 1t m.2 ssd
• Seasonic FOCUS 650w gold
• A samsung display conected by disoplay port 1440p 144 hz
• A second 1080p display 

for software i have:

• windows 10 pro 64 bit build 18363
• bios 1405 all at default
• GeForce version 445.87

I usually run on my pc on background:

• Discord
• Razer synapse 
• Logitech g hub
• Spotify

So, after all that I have 2 major issues.

 

1. Sometimes, when I turn on my pc, it starts with the Asus logo and a circle of loading below for like 3 seconds and then windows runs. Well, sometimes the circle doesn't show and the windows don't run. Sometimes, when I don't turn on the display, everything starts normally, but I think maybe is not connected. I solve this just restarting, it's fixes all the time after restart. 
2. My second issue, is the pc crashes so frequently. no blue screen, just nothing respond, so i have to restart. this happens when i play videogames, but not with heavy games, it happens at the time with: Magic Arena (nos so frequently, like 1 time every 2 hours), Subnautica (i cant play it, it crashes so hard), recently I downloaded GTA V (free on epic) and the same thing, I cant pass the prologue, crashes on the shooting scene, and also on the benchmark). Also I have some crashes on other games but, not frequent.
3. I also fell like the pc is not working as it should be, for the specs on some games I should have more FPS like WoW (on 7 like 80 fps).

I think that's it, hopefully someone can help me, i'm disappointed of the performance of a huge inversion. If you need more info, I can post any other thing.

I want to mention too that I don't know too much of computers, I built some PCs learning on internet but i'm not an expert, just a video games enthusiast. 

 

 

 

 

[IrugaGISS]

[bmx6454]

open eventviewer, and see what errors, if any, you are seeing around the times of the crashes.