So i have a 144hz monitor, but I just found out today, that apparently 144hz isn't supported over HDMI cables? But the monitor I have came with a HDMI cable... it did come with some other cable, but it doesn't look like a DVI cable (one side looks like a DS charger, the other is a usb plug). How do I know if my monitor even is in 144hz? I know that testufo.com is meant to be a visual test, but I'm not sure if i'm doing it right? The 144 looks a lot smoother than the 72, if that means its working..
it depends on the monitor but the regular USB connector end goes into your pc
the odd looking end usually goes into the monitor
and hdmi can look like dp I guess if you don't know what you're looking for