New computer crashes to a random color (especially when playing a game.)

[ThomasLivenqdfs]

My system specs are:
RX 570 4G oc
R5 2600
8 gb DDR4 3000 mhz ram
Cooler master mwe 500w psu

pls help and yes this computer is new
it doesnt crash anymore after about a few crashes and shutdowns of the computer.
when it crashes i cannot restart the computer as it outputs a black screen when i do that. so i can only shut it down

Here are the temps at idle https://imgur.com/a/yezMfh4
tanks

The whole system is in a crappy case so that might be a problem as im getting high temps

 

[Lutfij]

List your specs like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

Are you on the latest BIOS on your motherboard? By crash do you mean reboots or just a sudden black screen with no response from the keyboard when you tap the Numlock key/LED?

You should've looked at a higher wattage PSU and a more reliably built unit, for that matter.