Hi!
Actually, it's quite normal, it works with any resolution. Depending on whether a suitable driver is already installed, it will simply look distorted. But I have experienced this myself several times. Have you tried connecting the monitor with a different cable? Assume that the hardware is more up-to-date: HDMI / DP ...

Quick update: After I installed more ram, is it working now for some reason? It sounds very stupid but it works :D.