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Turn Off ASPM / PCIe Link State Power Management

We are using the XIO2001IZGU PCI to PCIexpress bridge on some our products. In this case the CIFX 50E (PCIe form factor) PC Card.

Problem Description

The CIFX 50E card is used in a windows 7 / Windows 10 PC.

  •   After a few seconds (sometimes later) the PC freezes. Which means, there is no update of the monitor, the mouse stops, keyboard stops. No Bluescreen.

When the card is removed („hotplug“, no reboot or anything) the pc continues to work immediately.
We found out that if we deactivate the PCI express power saving option the PC works just fine.

Turn Off PCIe Link State Power Management

Deactivation the PCI express power saving under Windows 7 / Windows 10:

Go to
"Control Panel" –> "Power Options" –> "Change Plan Settings" –> "Change Advanced Power Settings" –> "PCI Express - Link State Power Management"
and switch "Settings:OFF“.

Additional Information

  • Search the www for "ASPM disable" and /or "PCIe Link State Power Management"