Just installed X4 860K on a new Gigabyte motherboard F2A88XM-D3H. Installed drivers from Gigabyte CD. Running Windows 8.1 64 bit. Would no boot up, got 1 long and 3 short beeps so I installed an older NVIDIA graphics card. It booted up and runs fine but I want to use the built-in graphics on the motherboard since the NVIDIA is not compatible with Windows 10. Went into bios and there is no area to select the graphic hardware. Don't know what the problem is.