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Error Code 31 on Second Bridge, using PCI to ExpressCard with Laptop Vista

Last Updated: Oct 25, 2016 11:49AM PDT

Product: PCI to ExpressCard
Computer: Laptop
Operating System: Windows Vista 32Bit
Application: N/A

 

 

Problem:

Error Code 31 on Second PCI to PCI bridge.  Tried using Mobility Driver and it's still showing Error Code 31.

 

Explanation:

The issue is due to bus enumeration. The BUs that  Windows is trying to set for the PCI bridge is already  occupied by other device controller.

 

Solution:

It should be fixable with the Expansion_Driver_NO_HP_Enum_2_6.exe installation package.

 

If the problem is still occurring do the following:

Please reinstall the driver :see attached

 

  • plug in only the Ecard (unattached to the chassis):
  • run regedit
  • Then have him dig down to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\PnP
  • right click on the PCI folder and select export
  • save it naming it PCI
  • then go to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services
  • right click on the ECWDM folder and select export
  • save it naming it ECWDM
  • send the two ,reg files. to Technical Support 

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