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HP Z840 Workstation

Hi there.   I have a  z840 from 2016 with:

NVIDIA NVS 310 1GB PROMO graphics card

2 Xeon E5-2650v4 2.2 2400 12C CPU2PROMs

HP Z Turbo Drive G2 512GB PCIe SSD 

HP Dreamcolor Z27x Monitor

I’m looking to upgrade graphics and bought the following.    

 Nvidia Quadro M4000 Graphics CardSTK G187

Any advice for a relative newbie on hardware configs how to approach this upgrade?

 

I can update the drivers for the new card and have it work with the old one for a while but it crashes with a blue screen of death.   If I try the new cars alone I can’t get the monitor to work.  
Im using driver easy to update drivers and running diagnostics.  Would be grateful for any typos

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