While PCI Express has become the dominant I/O interconnect in PCs from ultrabooks to enterprise ... are unchanged Figure 3 - M-PCIe vs PCIe Architecture PCIe and M-PCIe devices have different designs ...

Uncorrectable fatal errors are the errors which have impact on integrity of the PCI Express fabric i.e. PCIe link is no more reliable and data/information is lost. Recovery from fatal errors is done ...