LHRaBBiT

By my maths, and at a quick glance I see 160GB at least in the WinDirStat display, what is the pagefile size? Hibernation file size, if there?. The disk is 237GB.

Nevermind my last comment... Yes it was Hibernation file size that took over 80GB. Thanks!

Depending on the part of Europe, maybe 2070 is a better deal.

Personally Id go with the XT, but as others have said, Nvidia more stable with better support... Id hope AMD will stable out soon though

If you're willing to put up with potential troubleshooting, the 5700XT just has better performance overall. Although, both models you're looking at are somewhat overpriced anyway. If you compared something like the Asus Dual to the Sapphire Pulse, you'd get the same gaming experience for lower cost.

5700 XT is a better GPU, but NVIDIA tends to have better drivers at this point. Generally i leave it up to the buyer to make the final choice, you can only reccomend what they do.

Well, here's how you can control from the latest AMD Radeon software (19.12.2), here's how:
 
Open your Radeon software, go to performance tab. Select the Tuning just underneath the performance tab, and you should see an image like the one below. Click manual, and at the fan category, set fan tuning and advance control to enable. Click the Fine tuning controls and you should be able to control your GPU fan.
 

 
It looks like you might need to update MSI After Burner (if they have) if you wish to use the software.
 
Hope that help... Well, this may not really solving your problem, but at least a work around while AMD and MSI work for a patch.

Welp, you're gonna need a lot more DRAM voltage than 1.38V for 3600CL14.  If you want to push your kit then bump that up to 1.5V on the DRAM and then you can tune it down later.  
 
Also, highly unlikely you will get 14-14-14-14 to be stable.  Probably gonna need 14-15-14-14.  
 
Edit:
Sorry thought you had a 2600 and not a 3600 so that 14-14-14-14 may work.  

TY ALL for answers, I think I made my mind to go with DRP4
 
Yeah I will switch to non-x variant as I looked up the extra price isn't worth it, thanks for the heads up.

Well, the Straight Power 11 550W is out of stock on that site, but the 650W is available and 15 Euro cheaper than the 750W so I would go with that and save some money.
The RMx and TXM recommended by @thinwalrus above are even cheaper and would also be suitable for your system.

With power consumption of around 280W at most under heavy load, you will be at 37% capacity of a 750W PSU (and much much lower at internet browsing or lower spec games) - if that's not overkill, I don't know what is.

Then get yourself a 3400mhz cl16 kit or 3600mhz cl17  kit. Whichever is cheaper. I could look into what type of die it is but its not important if you arent Overclocking
 
 
There is a ryzen ram overclocking tool that will give you settings to try in Bios. Tho you will have to identify what Ram die you have. Hardware unboxed made a tutorial on how to use it
 
 

The rx 5700 is software limited to only be able to overclock to 1850mhz (hits this easy) sadly so you wont get much of an overclock, for ram is 100% worth it to spend the extra few $'s on 3200mhz cl16 but you could just oc a 3000 kit to 3200 easy aswell.

Then I guess:
PSU - Cooler Master V series 550 W 80+ Gold Certified Fully-Modular Power Supply (81.69e) 
This should be a good PSU?

PSU - Be quiet! System Power 9 - 400w (40.69e)
RAM - Corsair - Vengeance LPX 16 GB (1 x 16 GB) DDR4-3000 Memory (85.99e)
Makes total - 673.63e (viable I guess)
GPU - RX 570 4GB (139.29e) (RX 580 goes for 188.99e making total 681.33e)
Makes total - 631.63e
So I'll ask him if he can afford 680 ish, if not 630 should be the jackpot he's looking for.

i don't even have to do research on this one, it seems to be peak rated and can't deliver full wattage on the 12v+ rail, which is a bad sign already
 
I'd replace it

IDK, i haven't heard anything about Tancens PSUS, other than that they fake the 80plus ratings. Also the price is really low for a 700w, so that is also suspicious.
 
I would get a CX550m (gray label) for your PSU, it is a much better psu than your current either way.
I wouldn't buy a used PSU, but idk.
 
I will tag a psu expert @LukeSavenije, maybe he can add some insight.

Ok i would replace that bomb with something within Tier A, B or C on that list:
https://linustechtips.com/main/topic/1045610-new-psu-tier-list/