Pc freezes, replace with a new MOBO still no signal monitor

Ok, so I have a problem with my PC. In one night I was browsing on Google and then suddenly my PC freezes. I restarted it from the power button from the PSU and then I turn it on, he worked. After let's say 30min the PC freezes again but this time when I tried to reopen it , the components were on but the PC didn't give signal to monitors. I was at a local PC repair shop and they tell me that the MOBO is the issue (I had some bend socket pins), but the things is that my PC worked for 1 year with that 2-3 bend pins. I gave the MOBO to the warranty and now I got a new one, but I still have the same problem, no signal. Before all this, my PC when turned on I could hear how is booting, but now is just turning on , without doing anything.
Recently I bought another RAM , and then I boost both RAMS to 2666. But I didn't have any problems, and after 2 weeks my pc isn't working anymore (no signal) The last thing I did I used a stick to reactivate the key (Windows), could be this from a virus ? I used the same stick in past but I didn't have any problems. (Not sure if this is the problem)


I tried all the ways to fix it

-One RAM stick
-Unplug the power cord and hold the power button for 30sec-1min
-Remove the CMOS Battery for a night,(ik also is good for only 10 min)
-Tried without GPU, RAM , HDD , SDD .
-I clean even the PC.

Specs:
i5 - 8600k
GTX 1060 6gb