Is a MacPro3,1 x16 slot PCIe or ?

pcie slot x16   Dan pcie 4 gpu in pcie 3 slot

The Matrox C900 PCIe x16 graphic card powers nine displays from a single board to easily build 3x3 video walls P690 Plus LP PCI Matrox P690 Plus LP PCI -

A PCIe x8 card will fit in any PCIe x8 or PCIe x16 slot PCIe cards larger than the PCIe slot may fit in the smaller slot but only if it is open The only time the GPU x16 slot will drop down to x8 mode is if you install another card in the second PCIe x16 slot ( another GPU or a PCIe

piggy slot machine game Solution · Re-seat the PCIe card in the PCIe slot · Try the PCIe card in another PCIe slot in the same computer · Try the card in another slot that runs at the full 16x speed , but to make sure, it's worth checking your motherboard's manual Should you need, or for