Nothing is displayed at all.
I am using the HDMI port on the card itself.
I can use my old graphics card fine though, so I don't think the PCIe slot is broken.
I heard about the possibility of the BIOS being the problem, but I heard updating it is risky, so I wanted to rule out any other possibility first.
I forgot to say that my PSU is a 500W Cooler Master Extreme Power Plus.