‎Aurora R13, PCIe x4 slot not working?

PCIe x1 card in PCIe x4 slot - GPU pciex4 slot You can run a 1x card in 1x and up, the slot will just be larger than what the card takes up They also make 1x video cards, but your choices butterfly staxx 2 slot A PCIe card and mainboard will negotiate the connection to the fastest supported by both So a x4 card will fully utilize a x4 slot

vikings slot review Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express