-Forum Member since 2016 -I do not work for Dell -A user helping other users -If you like an answer please click on thumbs up -If a reply is a solution to your problem please click on Accept as Solution Gaming on a home built with GIGABYTE B560M DS3H AC budget build with an i3 10100 Real work on a Latitude E5430
What operating system, which model 390--there are several inc. SFF, MT, DT- and what model video card? What are vga cards? Sounds obsolete. Normally a working discrete card automatically turns off the onboard graphics. Check the graphics settings in the bios. Maybe the card is not recognized or is not working. Open up the case to check the card. Make sure it is a card that can run on the limited power supply in the 390.