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PCI Express hotplug or error message disable

HP Recommended
HP Z4 G4


I am FPGA developer and I currently work on PCI Express board development. Every time I write new configuration to FPGA  PC detects its link went down which is okay. Unfortunately, instead of just loosing the link it crash and show error message just like in this post

I suppose this is happening because HotPlug is not enabled - I went through BIOS settings and I didn't find this option. I would be really glad if someone could tell me how to enable it.


Thank you in advance.


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