Help needed with gaming PC

[Staci12]

Hi- Unfortunately I only know enough about gaming PC's to be dangerous. I switched my son's RAM to higher RAM and also switched out his graphics card to a better one, all before uninstalling the drivers to the old one. I put the old graphics card back in so that I can uninstall the drivers and now the monitor does not want to connect to the display. When I boot, the monitor displays an HDMI icon then no signal, then black screen. Do I need to put the old RAM back in too? I think I have it all connected correctly and can't figure out why I'm not getting into Windows. Thanks for any help.

MSI B360M Pro-vdh motherboard
going from 8 g to 16 g RAM
going from 570 to 2070 graphics card

 

[COLGeek]

I suggest you post your question on Tom's Hardware in the Systems section of the forum.

 

[MDTOP]

Looks like your motherboard has internal video on motherboard.
Plug in there using HDMI or the VGA output. (you may have to enable the internal video in Bios)