not displaying on monitor

So pc crashed, main monitor froze and was displaying the game I played while 2nd monitor completely shut itself down. So I then forced pc to shut down using the power button and when I booted it back up the pc turned on but was not displaying anything... Tried reseating the ram, reseated the...

I have an Rx 570 8gb nitro+ and it doesn't display my screen is black but everything runs properly so i can't install the driver what should i do ? I used teamviwer to install the driver but the installer isn't detecting my gpu at all even in the device manager can't find my gpu My gpu runs...

This is my first time upgrading my computer. I recently purchased a GPU (EVGA GeForce RTX 2060 SC Ultra GAMING, 06G-P4-2067-KR, 6GB GDDR6, Dual HDB Fans ) and RAM (CORSAIR Vengeance 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ16GX3M2A1600C10B) for my computer...