Sajin5ghz all core on the 9900k? If yes, set it back to default clocks for testing. Overclocks can cause all sorts of issues, so putting all hardware back to default clocks is recommended. Set your ram speed to 2666 MHz as well. Have you also tried the video card in another pci-e slot?
vgerik1234So at this point its basically either GPU or possibly (slim chance) mobo? No other things could be causing the interactions with driver & kernel above?