My main rig is an HP Elite 8300 with an i7-3770 processor. The motherboard has three PCI Express slots ... a PCI Express x1, a PCI Express x16 and a PCI Express x 16 downshifted to a x4. I always had my GTX 1050Ti videocard plugged into the downshifted PCI Express slot, and a tp-link Wi-Fi card...