Gtx 770 2Gb , 4 screen set up HD

I bought pc from ebay called FreshTech Description : Asus H81M-Plus Intel i7 4790 4th Gen Quad Core 3.6 Ghz (turbo 4.0Ghz) cpu 120 Gb Solid State Drive 16 gb DDR3 1600 mhz memory Nvidia 770 2gb it is my first time video sharing with everyone so do excuse my shyness. Just realised i forgot to mention im using just 1 pc with 1 graphics card. Graphics card has 4 inputs ( 2 DVI, 1 HDMI, 1 port display) took me awhile to set up because 3 screens infront have DVI input and screen far right has HDMI so it took me awhile to set up.I used (2 DVI and 1 display port) as my gaming screens and HDMI as just for web browsing/skype etc... Next model up i meant by the Nvidia GTX770 4gb