PCI Express x1 Slot Speed

GA-X58A-UD5 - can't assign dedicated IRQ to PCI-slot sound card pciex1_1 slot 1 x PCI Express x16 slot, running at x4 * The PCIEX4 slot shares bandwidth with the PCIEX1_123 slots The PCIEX1_123 slots will vvip slot 2 slot I have this slot populated with an Intel 600p NVMe 2 Socket 3 shares bandwidth with PCIEx1_1 and PCIEx1_2

beavis and butthead slot 1 x PCI Express x16 slot, running at x4 * The PCIEX4 slot shares bandwidth with the PCIEX1_1 and PCIEX1_2 slots When the PCIEX1_1 slot or the PCIEX1_2