On a computer that is running Windows Vista or Windows Server 2008, a Peripheral Component Interconnect (PCI) Express interface is available that supports hot-plugging. However, when you hot-unplug a device from the PCI Express interface, the system becomes unresponsive.

Additionally, a CPU internal error (IERR) occurs. If the computer is equipped with an IERR LED, the IERR LED flashes.

Note: An IERR is an unrecoverable internal CPU error. Processors do not execute any instructions until the system restarts.

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