GPU not being detected?

[FynFTW]

I recently upgraded my computers motherboard, cpu and cooler with ddr4 ram.

 

Specs:

Motherboard - Gigabyte Z170X

HDD - Seagate 500gb (Working) and Western Digital 500gb (Works but not showing?)

CPU - i7-6700k Skylake

500w PSU (Doesn't say model number anywhere but it's not a dodgy cheap one) from novatech

GPU - EVGA GTX770 SC

Cooler - Arctic Pro 7 Cooler

Ram - Hyperx DDR4 2x8gb 

 

I had to reinstall windows 10 using a USB, unfortunately this has completely scuppered my computer. Only the drive in which I reinstalled Win10 x64, I can see in my devices and drives (also not in device manager). My Intel HD Graphics 530 work, but as soon as I plug my graphics card in (EVGA GTX770, I get no output on my monitor. I am a bit noobish although I am very confident this isn't a hardware issue, as the GPU fans are spinning. This also leads me to how my fans are going at hyperspeed and I have no idea how to quieten them. I've looked up many guides but I cannot install any drivers from Geforce Experience as it states how I don't have the hardware installed (I do). Previously before changing the hardware I never had any of these issues and it worked perfectly fine.

 

Any help is appreciated, thanks in advance

[MoonlightSylv]

Have you installed the GPU drivers and plugged your monitor into the GPU?

 

Also for the hard drive, right click the start button>Disk management> format the WD drive.

[FynFTW]

When I try install the GPU drivers it states I don't have nvidia hardware isntalled, which is weird as I have the 770 all done correctly. I plug it into the monitor yes, but I get no output from it. I am not sure about my drive as it simply isn't displayed anywhere, including disk management. My GPU isn't displayed in device manager, only my intel HD Integrated Graphics are.