So i went on and bought a second hand I7 4770 processor, Asus H81m-k motherboard and a 16gb ram hyper fury x. Then i proceed to build it with my gtx 960ti gpu but the monitor says no vga signal. The HSF and cooler fans are working. i tried and plugged in the mouse and keyboard and that seems to work cuz it lit up. I dont know what is the problem. im really new at this so if anyone can help me il be really grateful.