I have a custom built PC, I'll write specs at the end of post. I am facing a unique problem: whenever I try to turn on my PC everything in my case lights up, all fans spin but monitor shows "no signal" (monitor & HDMI is working - tested on different machine) but after multiple resets (force restart) it boots properly. It is random, sometimes even after multiple boot it doesn't work. But today after reset it worked. I am not able to pin point where the problem is. Tried removing external GPU (GTX 1650) and boot with Intel's integrated graphics but no luck.

Once the PC boots up, it runs for hours without giving any kind of issue. Only problem is getting it started.

I googled a lot. Removed every detachable component from motheboard and put it back on. Yet facing same issue. Below are my specs:

* Intel G4560 on Gigabyte H110M-S2 mobo
* 16 GB Corsair Vengeance RAMm at 2400 MHz (2x 8 GB)
* Zotac GTX 1650 OC 4 GB
* Artis 500W SMPS