Brand new build. Installed Windows using Integrated Graphics while waiting for GPU to arrive. Windows loads fine using Integrated Graphics but when I switch BIOS to the 1070ti it POST's then DOS command, repeat, repeat. Tried reinstalling Windows with the GPU installed-wouldn't work. Left the card in but used Integrated and it reinstalled. Windows recognizes GTX 1070 TI in Device Manager. Latest Nvidea driver is installed. Swapped the GPU with another computer-both work in the other computer, neither in this one. I am sure I am missing something simple but have exhausted my ideas.
Gigabyte z270x gaming k5
16GB G Skills Trident RGB (2-8GB sticks)
MSI 1070ti Armor
Thermaltake 750w PSU
Windows 10 Home (up to date)
Edited by Furyon, 17 March 2018 - 07:39 PM.