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Floating Signal Issue PCI-e 6323

Hello there,

I am pretty new to the forum and hope that I could get some assistance. 

I have a bugger of an issue here and hope someone could help me with this. The issue I am experiencing is that when the computer that this PCI-e 6323 installed is powered up everything would work normally. But in the evening when we shut down for the day and turn off the computer, few of our machines on that is connected to our breakout are left running, there seems to be an electrical floating issue that occurs (there is serial data getting feed to one of the I\O lines and from that some of the other lines get is some of the voltage, causing the system to get enabled.) I am not sure why there is current flowing in the system or why the other lines are getting affected. 

 

any insight into this issue or solution would be appreciated.

 

Thank you

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