Hardware problem - Need your help

DISCLAIMER: I will not be held responsible if anything happens to your files or PC due to user error or mistake.

I think the best thing you should do is to recover your windows. Just make sure you have a backup of all the files you need first. If needed go to C:\Users\ and backup the folder with your username, just to make sure you have your savegame files and other important data you may forget to backup.

Once everything is ready, go to Settings>Update & Security>Recovery> Reset this PC and follow the instructions.
I personally recommend to reset EVERYTHING but that's up to you. Just don't forget to backup first.

If you're not sure or don't know much seek help from someone near you who knows what he's doing.

Did you try turning off and on pc?

I am not an expert but i would try another PSU.

Sounds like a power supply issue to me. The weirdest shit happens when your PSU starts failing. It could also be the motherboard, but the PSU is easiest to test and rule out.

DDU before a new GPU
MoBo settings may be reset too
PSU seems to be the problem BUUUUUT maybe, and just maybe could be bad luck, RMA your new card

Fixing 101 make sure to test the gpu's in another pc to make sure they are "dead".

While people often look at specific hardware they often forget about a possible broken motherboard and what crazy things that can lead to.

Run DDU in fail safe and then install new driver and see if it fixes the problem.
If its not software related it could be something wrong with your motherboard or PSU. Are you sure your old card doesnt work in another computer?

My money would be on the PSU being the issue, but... I can't confirm that 100%. It could be your mobo based on some of the other issues you've encountered, but at the same time, the PSU could be killing the motherboard as well, in which case it might be best to replace both for safety reasons? I dunno. Wish I could give some advice for testing to find out which is the problem, but unfortunately the only way I know of doing such is swapping parts. Don't know if there are better methods, I've never had to look into it as I've never had those kind of issues.

if the gpus were tested in another computer and turned out dead there as well it can basically only be the psu or the motherboard.
psu seems more likely but evga usually isn't selling trash. or how old is your psu?

there's no really good way of finding out other than getting a new & good (!) psu...and another gpu.
btw was the "new" and now dead RX590 actually new or bought used?

also do you have the newest bios on the motherboard? the first ryzen cpus benefit greatly from updated bios.

Looks like PSU problem if 2 GPU died in that short of time. Are you sure the GPU is completly dead? If it is, you can still RMA?

PSU is throwing bad voltages, it will soon kill everything in your system.

It's either the PSU or a bad firmware on the mainboard (or maybe bad settings if you overclock your gpu)

I highly doubt that the motherboard would cause any trouble to the GPUs through the PCI express slot. Therefore, I think that the root of the problem is the PSU (at least by 99%). EVGA has a very good name in the PSU market and many of their PSUs have a 10 years warranty. That alone tells a lot about their quality. Unfortunately, even if we have the best case scenario that doesn't mean it will be problem free...
GL and I hope that you'll get a solution asap

Probably PSU, and might problem extend to motherboard. Could be also problem of heat, not good airflow burned the GPU. interested is the game you played both times. Check forums of same problems. Or overload GPU by that game. I face the same problem. 2 AMD GPU burned up to my PC. I check PSU and output were good without negatives. I took finally Nvidia GTX 1660.

Was the first graphic board really broken?
Did you check by connecting to another computer?

It seems to be a problem caused by insufficient power supply.
If the power supply of the personal computer is used for a long period of time, the power supply capacity of the catalog specifications will be lost.

Insufficient material to reach a conclusion.
But doubtful.

The most common way for a GPU to die is overheating. Did it get enough ventilation?
The old 3RLoD comes to mind. Lost 3 consoles to that sheet.