First follow the steps outlined in the KnowledgeBase Article: "What is the Process For Resetting the MAX Database?". If resetting the MAX database does not resolve your issue, proceed with the following steps:Pull out all the cards except for your controller. A malfunctioning card can cause the PXI chassis to no detect properly. If the chassis is now detected and identified, reinserting them following a binary search would be the mos efficient method. For example, placing in half the cards at a time to find which half the faulty card is in, and then splitting that half in half and repeating until the card is found.If no cards are causing the issue, follow the steps below: On a Windows system:
1. Test the chassis on another computer or controller if available and note any changes. The goal being to limit the hardware specifically the MXI or controller system that is causing issues2. Confirm that the behavior can be replicated with an empty chassis3. After this, confirm if the chassis or cards show up in Windows Device Manager4. Then go ahead and navigate to the directory C:\Windows.5. Move the pxisys.ini. and pxiesys.ini to the desktop or rename them. (For example, you could rename pxisys.ini to pxisys_old.ini.) You may only have pxisys.ini or pxiesys.ini.6. Restart the PC and launch MAX. This will cause PXI Platform Services to find the installed devices again and also recreate the pxisys.ini and pxiesys.ini files.On a PXI Real-Time (RT) System or Dual Boot PXI Controller, you will need to remove the pxisys.ini file from the /NI-RT/SYSTEM/ folder. You can do this by doing the following:1. In Internet Explorer, go to ftp://xxx.xxx.xxx.xxx/NI-RT/SYSTEM/ where xxx.xxx.xxx.xxx is the IP address of your RT system.2. Click Page and choose Open FTP Site in Windows Explorer3. In the window that opens, locate and copy pxisys.ini (could be pxiesys.ini) to the desktop.4. Reboot the RT system. This should cause PXI Platform Services to find the installed devices again and recreate the pxisys.ini and pxiesys.ini filesIf you are still unable to identify your chassis without error in MAX or if the pxisys.ini and pxiesys.ini files were not recreated, try reinstalling PXI Platform Services.
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