Question Overheat and now won't boot

[Coraline]

Long story short, my computer shutdown during gameplay (jurassic World Evolution on ultra settings) and now it wont power up the next day. I've switched the power supply over and checked the CPU for damage, I switched over the RAM and tried it with basically nothing plugged in and it won't even work with that, does anyone have any tips or thoughts as to what it might be?

 

[rgd1101]

full system spec? include make and model of the psu
how do you know is overheating and not components failed?