So, I just built a new pc, but although everything lights up and starts to work, the monitor displays "no signal". I troubleshooted every option and reduced it down to my cpu. Since I have a i5-9600k with a z370 a pro mobo, you have to update the bios in order for the cpu to be compatible. However I cannot even reach bios because there is no signal. My question is does an incompatible cpu cause no display to the monitor? Although I went to Best Buy's Geek Squad for help, they said the cpu does not cause no display, but I believe he is wrong as he barely listened to a word I said. Any solutions are highly appreciated.
Specs: https://pcpartpicker.com/list/qDk39J
Specs: https://pcpartpicker.com/list/qDk39J