It looks like you have 2 PCIe X16 slots but 1 of them only runs at X4 speed which is probably what is causing your issue meaning the system may not have been designed to run dual graphics cards.
NEVER CONNECT DISPLAYS TO BOTH THE ONBOARD DISPLAY OUTPUTS AND A GRAPHICS CARD THE MACHINE WILL NEVER BOOT LIKE THAT!!! Take 3 monitors off the onboard video outputs and it will boot if you cannot plug more monitors to the graphics card then you need to get one with enough outputs. Like a Matrox M9188 or Nvidia NVS 810.
beamermt79
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March 1st, 2018 09:00
elpro999dell
367 Posts
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March 3rd, 2018 20:00
NEVER CONNECT DISPLAYS TO BOTH THE ONBOARD DISPLAY OUTPUTS AND A GRAPHICS CARD THE MACHINE WILL NEVER BOOT LIKE THAT!!! Take 3 monitors off the onboard video outputs and it will boot if you cannot plug more monitors to the graphics card then you need to get one with enough outputs. Like a Matrox M9188 or Nvidia NVS 810.