Installed working GTX 660 into G3-710, it boots but doesn't output anything from either dvi, hdmi or display. PC beeps once so everything is ready to boot or it's probably bootign but no visuals.
When I install my GTX 1650 it works and the 660 works in another computer.
So far I have tested booting without ram or gpu but it just gives different kind of beeps and no boot if there's no ram or gpu. So I can't even boot it without a gpu. I also tested clearing the cmos by removing every cable and holding power button for minute multiple times. Now I am out of options. Do I need to remove the cmos battery? Is it something to do with the bios.