Which PCIe slot should my GPU be in?

The most common sizes are single, dual, or triple slot Most graphics cards are available in either a low or high profile form factor Low-

The first slot starts from the end of the IO panel Each slot is wide and spaced apart And another diagram shows even

gpu blocking pcie slot For whatever reason, this only fits in the PCIE3 slot , and not in the PCIE2 slot (I'd assumed these refer to the number of

gpu with m2 slot GPU motherboards aren't actually new Motherboards with four ormorex16-long PCI Express slots have been available for years but they don't — and won't