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Boot Camp: FireWire devices may affect Windows 7 responsiveness if connected to an Apple Thunderbolt display

Symptoms

When using Boot Camp and Microsoft Windows 7, FireWire (IEEE 1394) devices may affect system responsiveness if they are connected to the FireWire port of an Apple Thunderbolt display.

Resolution

Try the legacy FireWire driver that comes with Windows 7:

  1. Choose Windows > Start.
  2. Right-click on Computer.
  3. Select Manage.
  4. Click Device Manager.
  5. Click the disclosure triangle to expand the IEEE 1394 Bus host controllers.
  6. Right-click the 1394 OHCI Compliant Host Controller.
  7. Choose "Update Driver".
  8. Click "Browse my computer for driver software".
  9. Click "Let me pick from a list".
  10. Select the 1394 OHCI Compliant Host Controller (Legacy) driver—click it so it is highlighted, then click "OK."
  11. Restart the computer.
Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple’s recommendation or endorsement. Please contact the vendor for additional information.
Last Modified: Dec 18, 2012
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  • Last Modified: Dec 18, 2012
  • Article: TS4190
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