RedMashie

Don't run ram over 3600mhz for ryzen as then you basically have your Infinity fabric run at half speed which absolutely can result in game stuttering. If you haven't already I would make sure you set your ram to 3600mhz for a starting point and then troubleshoot if the stuttering still persists. Regardless always run at 3600mhz for the best performance. 

This and also disable fast startup in Windows (restart PC afterwards) 

Hey there. I found a couple of hits for the NZXT H440, in white and black/red colors:
NZXT H440 (White): Going for $224.89 on Walmart, sold by Action Packaged, Inc. NZXT H440 (Black/Red): Going for $100.00 on eBay, sold by an individual with zero reviews. NZXT H440 (Black/Red): Going for $261.47 on DHgate, shipped from Turkey. Please follow the links at your discretion, I believe the links I've posted are all from third-party or individual sellers. I've certainly never heard of them before. As for alternatives, eh... I have to admit the suggestions below aren't the best. Take a look if you want to:
 
Images:
BitFenix Neos ($227.60 on eBay): Grossly overpriced, but this was the only listing that wasn't out of stock. Fractal Design Meshify C ($89.99 on Newegg + $38.73 on Amazon): Fractal Design sells the colored mesh front panels separately from the case, you'll have to go out of your way to purchase it if you're desperate for a two-toned look with this case. An alternative suggestion would be to go with a white NZXT case, then install a bunch of purple LED strips and RGB fans, à la these examples:
 

Yeah I'm thinking I might just go with a white case then, thanks a lot for the help though

Yup sounds like you sorted the issue this way. 

Try to use two cables instead of one, I know what you mean by both are daisy chained on the end but don’t use just one cable. Gpu may not get enough power just from one cable so that may be the reason of all the issues 

Instead of using just one daisy chained cable use two separate like them ?
 

Well it not gonna do any harm if he tries that, you never know there may be some sort of issue with his psu or cable by itself.

To be sure you can stress test it, run some gpu intensive games or some benchmarks (heaven,3dmark)

Didn't see anything like that but it's just Windows being Windows.
Did you try that before ?

Ok, then if it would run fine in that slot it's the motherboard, if it wouldn't then it's GPU. After you'll get conclusion, connect GPU through one cable, it's the way it should be configured on the multi-rail unit.

Ok so last update, I swear, I tried running the on board graphics and it stopped the crashing, but then when i switched back to my GTX 1080ti it started crashing and resetting again, should I just assume it's a problem with my Graphics card at this point? Or maybe the PCI-e slot on the motherboard?
Sorry for all the messages I'm just not sure what to do.

The problem started happening after i installed my new RAM, Motherboard and CPU by the way, stupid that I didn't mention that earlier, I thought I did, I've probably written so many times about this problem that I forgot or something. Anyway I have done a memtest and it found no problems, so I don't know if it could be the CPU or Motherboard doing it and I just don't know what to do. I've spend basically all my money on this pc and it just sucks and I'm getting so demoralized and upset by this.

Alright I'll try that, thank you!

Or rather this one : Enermax Revolution DF 650W

Even if it's not PSU issue you wouldn't have a fire hazard in your PC at least.

This. If you're getting reboots\shutdowns without BSOD, the PSU is the first thing to check, next one are motherboard VRM. Well, besides obvious shutdown due to too high CPU temperature.

what PSU?

Your getting BSOD when it happens?
Clear CMOS. (maybe even remove CMOS battery for 5 min, remember to turn PSU off) Go to BIOS -> Enable XMP - disable MCE - When you set XMP II profile - choose No, when it ask for Asus optimization

No BSOD. I'll try these suggestions though. Thanks