Can't fit PCIe card in PCIe slot and fasten down with screw

PCIe x16 GPU card into a PCIe x8 slot? what does a pcie slot look like PCIe slots come in different sizes, with the most common being PCIe x1, PCIe x4, PCIe x8, and PCIe x16, which indicate the number of lanes what is a slot tournament Than I would take a flathead or something similar and press From here it looks like the lock moves from side to side not up and down

whats the best slot machine to play Just by looking at the picture of the board on the linked website, the second slot says PCI 16_2, which would say to me that it's a PCIe 3 x16