check a few things out. make sure your mb bios code is at the newest rev. in the mb bios make sure the gpu is set as the primany display output. if it set to ipgpu then peg/pci then there going to be a delay for the mb and windows to switch over from onboard to gpu. also under that line make sure muilt monitor and intel rendering are off to turn off the onboard gpu if your not using it. then under boot make sure quick boot is turned on and set a time for the mb to wait for you to hit a key. in windows use msconfig and under boot turn off windows gui boot and turn off non need program.