graphic card in slot

Solved: PCIE not running full speed pcie 3 0 in 4 0 slot PCIe x8 Gen expansion backplane with eight slots The OSS target backplane supports one PCIe Gen3 target adapter installed in the OSS target slot and up to pcie expansion slot PCIe x16, 1 PCIe x16, 1 PCIe x1, 1 Key E for WiFi; Graphics Output Options: HDMI, DisplayPort, D-Sub; AMD CrossFireX™; CH HD Audio

pcie x1 slot function PCIE3 is used for PCIe x4 lane width graphics cards • PCIE4 is used for PCIe x1 lane width cards