after bios screen my screen is only showing horizontal and some white flickering lines....PLEASE HELP.....

[Shubhang kedia]

i had finally assembled my new computer last night....
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my specs are:
1)intel i3 4160 processor
2)gigabyte b85m-d3h-a motherboard
3)asus gtx 750ti oc gpu
4)circle apfc 500w psu
5)acer p166hql monitor with vga connector
6)corsair venengance 4gb*2 ram
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so when i was finished with my assembly (with lots of hope) i connected all the wires to my mobo when i ran the cpu for the first time (with the gpu and without its driver) than coloured dots were seen on the screen (not everywhere) i than installed its driver (which came along with it) than i rebooted my pc...AND THEN after the bios i was welcomed with my monitor full covered with red and white moving horizontal lines (i was shocked)....than i connected the vga to my mobo's vga port than all the things were fine.....please help bcz i had ordered all things via snapdeal and would not want to wait for a month for the replacement..........

 

[uberman]

Uninstall Intel video driver and disable onboard graphics in bios.
Try reinstalling NVidia driver if that doesn't work.

 

[Shubhang kedia]

But i have plugged my vga cable to my asus gtx 750ti not on my on board graphics

 

[uberman]

If you have two vid drivers installed one can conflict with the other.

 

[Shubhang kedia]

But i have not installed intel hd drivers...i have only installed thecdrivers of my gpu..not my intel graphics