My Graphics card will not fit in my motherboards PCIe slot

Which PCIe Slot is best for your Graphics Card? pcie slot for gpu Therefore, some PCIe x16 slots might only have x8 PCIe lanes Usually, this wouldn't be problematic, even if you want to attach a GPU card to it pcie 40 in pcie 30 slot So I just bought all the components for my new desktop I'm building but I'm having trouble getting my graphics card to fit completely in the

pcie slot dimensions Therefore, some PCIe x16 slots might only have x8 PCIe lanes Usually, this wouldn't be problematic, even if you want to attach a GPU card to it