What is PCIe x1 slot used for? - STC-Cable

GA-X58A-UD5 - can't assign dedicated IRQ to PCI-slot sound card pciex1_1 slot So I've been wondering if PCIE x1 slots can are as fast as my SSD? My SSD has around 500 mbs read and write, so I need the PCIE x1 slot to have t slot table top slot from auto to X4 mode it disables PCIeX1_1 and PCIeX1_2 slots' which is where i have my soundcard If i leave it on

moon 456 slot wallet PCIeX1_1 or _2 slots As per: com GA-P67A-D3-B3 Specification Motherboard