ROBiMS

looks fine, if you want to optimize for that extra little bit of performance (I mean you chose a very high-end cpu) I would rather go for CL16 memory instead of the CL18 in your parts list

Going with a dual channel kit is smart because the sticks are meant to run together. Theoretically there is no problem in combining different ones but it will get you a higher chance of unpredictable errors talking from my personal experience (at least with older platforms), but may anyone correct me if I'm wrong.

Just to get you right, in raid 0 with what? 2 ram drives or one paired with a hard drive, nvme, sata ssd? would all be stupid but kinda funny...

That sounds kinda random. Especially that it happened not just once...

Set up the server on the main PC and transfer it over usb or something like that.

And maybe he could do a fresh install and stick with Microsoft Edge and the Windows Defender for a little while just to see what happens?

Had the same issue with the last nvidia driver, went back to one from a few months ago and everything worked fine except for the newer games that won't start anymore... Amazing technology in 2020 ^^

Waiting literally years now for a response that someone used the gift code I bought before I gave it away to a friend. Even a "we can't do anything" would be fine but no...

How did he find out that he has got ransomware? 

Maybe the game server software is exploitable and someone is doing a joke on him. 

Do you have any other PCI extension cards plugged in? Sometimes they can f**** up the whole system if the drivers aren't working correctly even if it has nothing to do with the game for example a usb card.

Or your PC is just too fast... Windows is unpredictable sometimes...

It could be a nvidia driver issue try installing an older version and play around a little with the ingame settings. 

The specs seem fine for an okay experience with the game. SSD and 16GB of RAM are always a good idea if you can afford and could help but I can't promise you for sure.

I don't know what kind of applications are running in the background of your system but it seems that the ram can't keep up with the amount of data. What does the task manager say? Would be helpful to know.

Another thing it could be is a general bug in Windows. I remember stutters a while ago where my I think it's called notification assistance was enabled in the Windows settings, you can try turning it off you find it under a moon icon in the settings.