PCI-5105 rounds down every other point

[Fedor]

I noticed that our PCI-5105 digitizers round down every other data point to about 8-bit resolution. Here're a couple of screen shots of 128kHz sine wave recorder at 60 MHz. The range was set to 6V, tested with  NI-SCOPE drivers v3.9 and 4.1. Can that be fixed or avoided:

[Nathan-P]

Interesting.  Here are some questions:

• What is the SN of the card?  
• How long have you had the card?
• Does this occur on all channels and at all frequencies?  
• How often does this happen? (Every acquisition?)  
• If it doesn't happen every acquisition, How do you reproduce this behavior?  
• How long has this been happening?  
• If it just started happening recently, what changes could have triggered it?  
• Describe the signal that you have been measuring with this card. (Voltages, transients, rise-time, frequencies, as many specs as you have, etc.)  
• Describe the system you have this card setup in. (Computer model, connected devices, etc.)  Basically what is the digitizer connected to?
• Provide any additional information that would help provide context around this issue.

-Nathan