Is 7010's PCIe x16 slot only Gen ? Can I upgrade to ?

Is 7010's PCIe x16 slot only Gen ? Can I upgrade to ? pci e x16 slot PCIe x16: The largest slots on the motherboard, these slots are used for cards that require a high bandwidth like GPUs By far, the most popular pcie 2 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 -

pcie 2 slot 1, PCIE X16 slot split 4 PCIEX4 PCIE X16 split X4X4X4X4X4, SATA powered version 8, Short PCB design to minimize the size,

pcie x 16 slot What is PCI express card? How many types of PCIe cards are there? What does PCIe x8, or PCIe x16 mean? Can I use a PCIe card in a 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