Will a 10Gb network card work at full potential even if the PCIe 3.0 allows for a maximum transfer speed of about 8Gb/s? - Quora
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hardware - Force renegotiation of PCI Express link speed? x2 card reverts to x1 width - Server Fault
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PCI Express Link Speeds and Bandwidth Capabilities - PCI Express 2.0: Scalable Interconnect Technology, TNG
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