How can you know if a PCIe slot is shared with another?

How can you know if a PCIe slot is shared with another? 16x pcie slot Yes it will be fine in the bottom slot, if a PCI-e card can physically fit in the slot it will work dark jungle slot MANUAL says PCIe x 16, PCIe x 4, PCIe x 1, and another PCIe x 1

dark jungle slot Maybe you have a hair or something else blocking a contact in your PCIe slot Or a bent socket pin Or a defective motherboard Or a defective

indonesia4d slot PCIe SSD Performance; EZ-Latch：PCIe x16 Slot & Connectors with Quick Release & Screwless Design; Fast Networks： LAN & Wi-Fi 6E Product Overview · This PCIe x1 to PCIe x16 Slot Extension adapter provides enhanced compatibility between motherboards and a variety of PCI-Express expansion