rx 470 mining edition, problem to start windows

[DeMiBo]

Hello to all,

I have problem to run windows 10 when I plug 1 sapphire rx 470 8gb mining edition card. I have H81 pro btc motherboard, evga 650w gold PSU, 4gb ram, procesor intel 3.2 dc. So when I press start button, fans on GPU start to spin, but on the  screen  is showing nothing, like everything from hardwer parts work, but system doesn't run. Do I need to change something in BIOS? I checked all cables  100 times already, have I connected good.

Any advices will be more than welcome.
Thanks in advance!!!

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[B470]

Restart machine and disable driver signing by pressing F8.

Then install all appropriate drivers.

[DeMiBo]

Thank you for answer,

problem is, that I can't restart system, I can only turn on again. Only without gpu I can run windows 

[nshyamkrishna]

Check if Primary graphics Adapter setting in BIOS is set to ONBOARD (not PCI EXPRESS). Check if thats causing that problem.

BIOS--> Advanced --> Primary Graphics Adapter

[DeMiBo]

thaaaaanks a lot, is workig now, really appreciate your answer!!!