PCIE x16 slot only running my RTX 3080 at x4 (8GTs

However the same physical connector can be used for x1, x4, x8 and x16 In many server class motherboards you will find slots which physically

In ASUS 「PCIe x16 Slots - 1」

1p slot games Design Ready for PCI Express 1*PCIe x4 & 2* PCIe x4 with Thermal Guard; 1*PCIe x16 with Ultra Durable™ Armor; 2*PCIe x1 5

100k joker slot free So, there is no singular PCI Express slot There are actually four sizes : PCI Express x1, PCI Express x4, PCI Express x8, and PCI Express x16