I just got a Nvidia GTX 1050ti and installed it. When i turned my computer on it doesn't give any signal to my monitors. I tried to plug my old AMD raedon 6990 back in to try and change the bios but it does the same thing now. I have no integrated graphics card and don't have any idea what to do.
My build
GIGABYTE GA-970A-UD3 AM3+ AMD 970 + SB950 SATA 6Gb/s USB 3.0 ATX AMD Motherboard
AMD Phenom II X4 965 Black Edition Deneb Quad-Core 3.4 GHz Socket AM3 125W HDZ965FBGMBOX Processor
G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600
CORSAIR Enthusiast Series TX750 V2 750W
My build
GIGABYTE GA-970A-UD3 AM3+ AMD 970 + SB950 SATA 6Gb/s USB 3.0 ATX AMD Motherboard
AMD Phenom II X4 965 Black Edition Deneb Quad-Core 3.4 GHz Socket AM3 125W HDZ965FBGMBOX Processor
G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600
CORSAIR Enthusiast Series TX750 V2 750W