I am running into an issue here with my display. When I try booting my pc my computer posts but monitor does not detect display from the GPU. I tried using my main GPU on a different system and the display works fine. I tried putting a different GPU in my main system and the display works fine there too. I've tried using a different display cable too, but my main Computer just wouldn't pick up the display when I have the main GPU in the system. They're both low profile cards and don't require external power. Please try suggesting me any possible fix to this problem.