Best Answer a PCI . VIDEOCARD is compatible and can run at full speed on a pcie . slot since the pcie . slot is backwards compatible. While a .My Zotac GTX gb just came in today upgrading from an HD gb . However, i noticed that it was PCI E . while my motherboard is only PCI E .Hello, I have a motherboard with PCIe . graphics slots only. Will a PCIe . graphics card work if I plug it into one of the PCIe . slots?.PCI Express. Jump to navigation Jump to search PCI Express Year created .
Are pcie . backwards compatible