Need Help (Not booting)

[Yahir23]

Okay so basically I need help recently my doesn’t want to boot anymore for some reason it was running fine and all. But when I got off yesterday and tried to get on later that day I turned on my pc and tried to use it but it turns on but it shows no display on either monitor and it’s not my display because they both work and I made sure they did and also my keyboard doesn’t light up like it always does when I turn on my pc so idk what’s that all about I tried changing ram slots cleaned it out a bit changed hdmi to use my motherboard one doesn’t work. All the lights are on I hear the the disk everything seems to be fine but shows no input was out of no where I was thinking maybe my cpu might of overheated and I need new thermal paste and new fan and I plan on getting one so it doesn’t overheat. Any one think they can help? i’ve had the built for almost 8 months or so. Came outta no where to be honest was working fine last time I got off i just shut it down normally.

specs are 

Mother board : mpg x570 gaming pro carbon by msi

Cpu: ryzen 7 3700x 

gpu: 2080 super 

Power Supply: 750 gold by master cooler 

[Cherrixx]

your psu is the issue... i think your motherboard is trying to take a safety measure so it doesn't totally fk up...

[Yahir23]

1 hour ago, Cherrixx said:

your psu is the issue... i think your motherboard is trying to take a safety measure so it doesn't totally fk up...

u sure because it’s been running fine ever seens i got it and i’m pretty sure it uses less than all 750 it uses around 500 ish

[ndesign.ie]

check connectors, then fans, then the board if any foreign objects.

Check BIOS settings for primary display device, attached disks.

Yahir23 maybe right if those checks are all good.

I've come across this where a 3rd unattached monitor was set to primary so try without GPU and non boot drives.