shutdown pc & disconnect power.
check your CPU RAM, HDD, and Graphic card are installed properly. (plugged into the motherboard and have all the power connectors connected (CPU8pin, GPU 8 pin, mobo 24pin ...)
then make sure your connect sure your monitor to the 1070 card(not the on from motherboard)
page 22 on your menu part 22) has a info regarding troubleshooting LED located at the bottom right corner of your motherboard.