Upgrading monitor AND video card
Dell XPS 8300, i-7 3.4 Ghz, 12 GB RAM, W7 Pro, AMD Radeon HD 6450
(2) 24" monitors
I want to go to a single 32" Acer higher-resolution monitor, which needs a different video card to get the higher resolution I am seeking. I have the monitor and video card but cannot get the monitor to display anything when I boot up with a new video card in place.
I tried a BioStar 4GB Radeon RX-550 and got nothing, sent it back because I thought it was defective. Now have an MSI version of the same card, but the same result. Clearly I'm doing something wrong.
What do I need to do prior to swapping the video card in order to get a display signal at boot-up? The 32" monitor works fine but looks mediocre at 1920 x 1080