How to disable on board GPU?

[merlinutz]

Hi guys,

Please help me to disable on board video.
Motherboard: AsrockFM2A88x+Killer;
Processor : AMD A10-8760k;
GPU: SAPPHIRE Radeon™ R9 380 NITRO, 4GB GDDR5, 256-bit, Back Plate;
RAM: A-Data 2x8 GB 2133Mhz;

In BIOS, is disable (but on the screen appear 14 GB + 2 GB share memory), in Windows7 is disable.
In BIOS is PCI Express selected, instead onboard VGA;

I have three displays connected on the external GPU (1 x HDMI, 2 x DVI), no cable on the onboard GPU;

Please advice,

Best regards,
George

Best regards

 

[Lutfij]

Within your BIOS, under advanced tab
https://youtu.be/BXEsM8HP5gY?t=175
option to disable onboard GPU resides here.