Question GTX 960 wont give signal/Wont show up in device manager

[Userpclol]

I've been searching all day, the gpu can work on another computer , but not mine,i removed the cmos batter for 30 secs,still nothing,i tried an other hdmi monitor , still nothing,i disabled intel hd graphics, i tried updating the bios of my gateway dt71, it says :ROM file ROMID is not compatible with existing BIOS ROMID,i removed it and put it in again like 20 times,please help

 

[TheFlamingCharizard]

Are you even getting power to the computer? What is your full spec of the computer?

 

[Userpclol]

Are you even getting power to the computer? What is your full spec of the computer?

yes i am,the computer shows greatly in the motherboard vga specs are : i5 2400/gtx960 2gd5/2+2+2+4 gbs of ram/500gb seagate hdd