What cable is this?

[Cheek Bust]

Not sure where this goes as my case and mobo instructions aren’t clear.

[Whiro]

2 minutes ago, Cheek Bust said:

Not sure where this goes as my case and mobo instructions aren’t clear.

That’s usb3.1 , your mobo may not have it. What’s you mobo brand and model number?

[Cheek Bust]

I have ASUS tuf z390 and NZXT h510 case

[Cheek Bust]

I’m just trying to figure out why my monitor says no display port cable. This is a long shot, but can u look at this pic and see if there’s anything on the mobo that doesn’t look hooked up?

[Spotty]

2 minutes ago, Cheek Bust said:

I’m just trying to figure out why my monitor says no display port cable. This is a long shot, but can u look at this pic and see if there’s anything on the mobo that doesn’t look hooked up?

The +4pin on the motherboard 24pin isn't plugged in properly. Take that cable out, join the +4pin to the 20pin and reinsert it.

 

 

I also can't see any display cable plugged in to the graphics card.

[DildorTheDecent]

5 minutes ago, Cheek Bust said:

I’m just trying to figure out why my monitor says no display port cable.

Display port cables are (generally) for the rear I/O of GPUs.

 

Example of rear I/O:

[Cheek Bust]

Also, what buttons do I push to change from disable to enable? 

[Spotty]

58 minutes ago, Cheek Bust said:

Also, what buttons do I push to change from disable to enable? 

That looks like your monitors on screen display if I'm not mistaken, so there should be buttons on the monitor you use.

[Cheek Bust]

3 minutes ago, Spotty said:

That looks like your monitors on screen display if I'm not mistaken, so there should be buttons on the monitor you use.

There are arrows but they don’t do anything 

[OrionFOTL]

Well then obviously we can't possibly advise you how your monitor works, if we don't know what monitor that is.