4090 blocking PCIE slots

pcie slot as It's like the card can almost make a full connection, but is just short of making it by a couple of millimeters…

Yes PCIE x1 cards fit in any standard PCIE slot, being x1, x4, x8 and x16 Larger cards, of course, cannot fit in smaller slots

short pcie slot PCIe x16 slot, but that card will receive less bandwidth Similarly, you can insert a PCIe x8 card into a PCIe x4 slot, but it'll only work

lucky streak 3 slot Bandwidth of PCIe · PCIe x16 : 128 Gbits · PCIe x1 — open stack: 8 Gbits · PCIe x16 : 32