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Driver_irql_not_less_or_equal after NI-VXI 3.3.1 driver installed

We purchased a new Dell Optilplex 7010, installed XP and then installed NI-VXI 3.3.1.  After rebooting with a PCI-MXI-2 board installed, the found new hardware message was displayed.  Then after selecting to install the device driver, the computer crashed with the blue screen message "DRIVER_IRQL_NOT_LESS_OR_EQUAL". 


We tried renaming nipalk.sys to nipalk.bak.  After rebooting, the system did not crash when trying to install the device drivers but a message was displayed that the correct hardware drivers could not be found.


We then updated the BIOS from A5 to A12 (A5 was the BIOS the machine came with and A12 is the latest BIOS).


After rebooting and then trying to install the drivers, the computer crashed with the same error as before.


Note - the Dell computer originally came with Windows 7.  The reason we installed XP was because we could not find a Windows 7 driver for PCI-MXI.  The driver NI-VXI 3.3.1 is supposed to work with Windows XP.


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Hello Jamierp,


I noticed that you posted the same question on the VXI forum. Since this question is in regards to VXI hardware let us keep our conversations over there.




Izzy O.

Applications Engineer

National Instruments


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