Computer runs - no signal

[Pavel L]

Hello,

 

I'm essentially a first time builder and as the title says, I ran into rather bothering issue

Specs:

CPU: Ryzen 7 3700X

GPU: MSI GeForce RTX 2070 SUPER VENTUS OC

RAM: 2x Crucial 16GB KIT DDR4 3200MHz CL16 Ballistix Sport LT Grey

Motherboard: MSI X570-A PRO
PSU: Corsair TX650M

 

I've tested to swap in my old GPU (VGA) and it still didn't work. I tried to connect HDMI from the 2070s to TV, it didn't work. Computer runs, lights on mobo are on, there is just on output to the monitor. I'm guessing it is RAMs or CPU. CPU is connected to power with an 8-pin. I tested both 2/4 and 1/3 combinations. All coolers are running, the computer doesn't suddenly turn off, it seems to have no issues outside of the output.

 

Any times on how to troubleshoot this? How do I figure out wether CPU and RAM are fine or not.

 

Thanks for answares and sorry for likely common question.

 

Pavel.