TheGlenlivet

You can buy replacement fans for that card. Instead of reengineering the whole thing.

TX or RM 550 series from Corsair are good too.

Sorry I meant they aren't clear about a recommended spec. I agree, a new 5900X and dedicated modern GPU would be a good build for these requirements.

They aren't very forthcoming with hardware requirements are they...? What have you been running this on since the trashcan went away?

What software are you using, primarily? For games, the higher clocks of the AM4 chips are a better fit. Unless your application can leverage more than 16 threads or needs more than 128 GB of RAM, I would go with the appropriate 3600/3700/3800/3900 series chip. EDIT - Or new 5000 series.

You could build an AM4 system that will be much more powerful, inexpensive and easy to use than what you are used too. I would seriously consider the use case before jumping into Threadripper.

It sounds like the PSU to me. The original short circuit could have damaged it. I'd double check the connections you changed with the new MOBO to make sure everything is correct and tight, but it seems probable the PSU was damaged.

Very Subjective topic. Do you have a place where you could try out these keyboards like a computer or Electronics store? I might pick the K95 myself, but whatever you buy get it from a place with a good return policy.

Ahhhhh. Might be an issue with Windows then? If you disable sleep and hibernate does it always boot normally?

If in doubt, replace the thermal past. It's cheap and easy. It's not likely that it's damaged if it was happening before the PSU blew up. It's more likely RAM, CPU or a MOBO issue. Have you updated the BIOS? Is it stable when it does boot?

https://www.asrock.com/mb/intel/h310cm-hdv/index.asp#CPU This page shows the CPU support for the BIOS version. Unfortunately, it doesn't look like this board has a flashable bios without a CPU installed. You'll need to check the bios version to be 100% sure.

Can't help you with the RGB, but you need Lutris for Epic games. https://itsfoss.com/epic-games-lutris-linux/

It's a B550 board with an X16 pcie gen 4 slot. It will work with that GPU just fine. How well it works depends on the rest of the system. What are you planning for this build?

Is this a PCI lane issue? I haven't folded in a while, but you went from x16 on the 5600xt to x8 when you added the second card, correct?

The one thing I see in common with all the fixes is removing power fully right? Like to remove RAM or pull the MOBO out of the case you would have removed it from power all together. With gear this old, it could be the motherboard RAM or CPU going bad, so I would try and test the RAM with Memtest86 to make sure that isn't it. After that the motherboard or CPU could be the issue. You said your old PSU failed? It might have done some damage to something on the way out.