With an Intel i5-6600k with integrated graphics, the initial boot did not display on my monitor (HDMI to DVI cable). After putting in a graphics card and connecting it to the monitor, I was able to see the display. Then I installed Windows 8.1 Pro and flashed the BIOS to version F5, and everything seemed to working ok. Then after going into the BIOS, I changed the peripheral display from PCI-E to IVGD, thinking that would fix the integrated graphics issue. After saving and exit from the BIOS, after booting I now I cannot see the display with either the graphics card or integrated graphics connected to the monitor. Any ideas on how to get the display working now?