[SOLVED] Only getting video with onboard graphics

[AlexF13]

With onboard graphics everything is fine with GPU unplugged
When i plug the GPU i have video signal but i can't get the BIOS setup, the logo screen appears and a sound indicates me the keyboard is working, but when i tap a key nothing happens

The setup is really old but everything works fine
i7 2600k
EVGA 750ti
Intel Desktop Board DB75EN

Sorry for my bad english

 

[palafoxnikarlo]

when did it last worked fine?

 

[AlexF13]

when did it last worked fine?

This morning before installing the GPU
Never installed a gpu on this MB

 

[AlexF13]

when did it last worked fine?

stuck on this screen, when i tap F2 or any key nothing happens
Using the HDMI port of the GPU

 

[palafoxnikarlo]

there's a lot of possible cause for this. most of the time whenever I encounter this particular issue the hard drive is at fault. i would suggest you try and disconnect your hard drive and see if it boots into BIOS.