I recently built my first PC and am using an Optix G241 monitor and whenever I turn it on it shows the msi logo, goes to black and then says no DP: No Signal. This makes me assume that it's look for a display port cable, however I'm using an HDMI cable. I also noticed a red plastic button on the back which I assumed would toggle the input but when I tried pressing or holding the button it didn't seem to do anything. I've tried every combination of port swaps on the tower and monitor but I can't make it swap to an HDMI input. How do I make the monitor receive input via HDMI?