changing the IRQ manually for NI-PCI6503 on windows 2000

[Hen Gershengold]

Hello

 

I need yours help on this matter

 

I have installed a NI PCI 6503 board to my PC before installing the driver for the board the board receive the IRQ that I manually assigned in the BIOS (IRQ3)

 

My problem is that after installing the driver (NIDAQ) the board receive and IRQ 21

 

How can I change it back to IRQ 3?

 

Apposite yours helpHen Gershengold    

[Abhinav T]

Hi,
 
Have you tried changing it again through the BIOS after installing the driver?
 
Also, is there any specific reason why you are trying to change the IRQ level? Is the card not functioning properly.
 
 

[Hen Gershengold]

Dear Abhinav
 
Thank you for your response.
 
Yes I tried to change it again after the installation the results are
The IRQ for the PCI slot is 3 but the IRQ of the board is 21
 
The reason that I want do change the IRQ is because I have a delay of about 100mS in every read for the board
 
This make it difficult for me to measure correctly

 
On a different PC, duplicate test station  with the same board on IRQ 9 all measures are correct
 
Thanks for the help
Hen

[Abhinav T]

Hen,
What is the difference between the 2 computers? Are they using 2 different boards, BIOS, OS?
I find it very strange that the IRQ level is realted to your acquisition rate. Is the only difference betweent he 2 computers the IRQ level?
 

[Hen Gershengold]

Abhinav,
 
Yes both computers are the same the only different is the IRQ level
how can I change the IRQ level
I think that it will be the same
 
Hen