Will my graphics card work in all PCIe slots?

Question - GPU PCIe 4 in a PCIe 3 slot using pcie 4 in 3 slot Sometimes, a PCIe slot operates with fewer data lanes than the mechanical slot-type indicates Notice 'SLOT 13' are PCIe x16 slots but only Slot 3 has an x8 brievenbus slot praxis What is the point of even buying a video card that uses PCIe if people have motherboards that only have PCIe slots?

recensione slot the fortune pig with x16 PCI express socket) it will be also x8 PCI For your 653206-B21 HP DL380p560 Gen8 3 Slot PCI-E Riser Kit => but it