I want to use my apu

[Miniosk]

My problem is that I disabled my integrated graphics so I can use my r9 270x however when I installed the 270x my screen stayed black. When I tried to go back into bios my screen stayed black because I dont have any graphics supporting the PC.

My apu A6 6400k
Mono: f2a78m-hd2

 

[Obakasama]

Usually motherboards should detect if you have a graphics card installed and prioritise it without having to manually disable the integrated graphics.

The only thing I can think of in this case is for you to clear CMOS so you have default BIOS settings. Assuming it's revision 3 of that motherboard, refer to pg.17 of the manual: http://www.gigabyte.com/Motherboard/GA-F2A78M-HD2-rev-30#support-manual

 

[Rakanyshu]

did you remembered to connect the screen on the gpu instead of the mobo? now if you want to use your igpu again Obakasama pointed a solution that should work.