The USB port (normal type A port) that's next to the bottom of the memory slots? If so, no. That port is primarily just for doing a BIOS flash. It's made so if you have a USB stick that just has the BIOS files on it, you don't need to worry about USB detection across any cabling or any other interface, you can just plug it directly into the board. It is also limited in capability as I believe it's just a 2.0 port (USB to SPI). It's the only port that will allow you to flash the BIOS without a CPU installed.

The memory swap test did not go well.  My nephew got the following memory sticks for his build:
 
Corsair Vengeance DDR5, 5200HMz, 64GB [two 32GB sticks].  
 
After I installed them, flipped the PSU power button to on, then turned my system on, the PC didn't send any signal to the monitors.  It just sequenced through codes:
1F, 1A, 79, 3C, 3F, 4C 
 
Those are the ones I was seeing.  Another code might have been in there too, but it was split second and I couldn't catch it.
 
I powered off, and powered back on, and even continually hitting the Delete key, it wouldn't even go into BIOS screen.
 
I have my original memory sticks back in and it is working.

I let it sit in there for several minutes.
 
But okay.  I will try the memtest86.
 

Did you watch the video on the download page? It's mostly pretty simple. You just use the tool to create a boot able USB stick. Then you boot from that USB stick and it runs the test and gives you the results.

If you want to try the other memory again, make sure you go into your bios first and set the memory settings at default before you swap it out.

You should be able to go to the save and exit tab, then there's a list of drives you can instantly boot from. Your USB drive should be listed there. You should be able to just click on it.

Good job getting memtest86 to work! yes, it does take a while to run. The benefit though, is that it can run outside of Windows and any other instability issues and give you good data on your memory to isolate that from contention.
 
I would generally be inclined to believe that if you ran the full suite of memtest86 (compared to our quick runs with memtest64 previously) that your memory is indeed fine.
 

RAVENEVGA
As a side note, when I exited MemTest86 and the computer booted to Windows,.....the keyboard was [once again] not working.  I wonder if I got a faulty replacement board from EVGA.

Question for you: When you say faulty board, are you talking about the replacement motherboard? I still think your keyboard issues are possibly due to the keyboard itself, but I have this foggy recollection that you've tested another keyboard and had the same problem?
 
So, let's try to recap and make sure we're on the same page (let me know if any of this is incorrect and feel free to add details):
You've tried alternate:
-Motherboard
-Power supply
-CPU
-Memory, as well as running a full memtest86 run on your memory confirming no errors.
 
You continue to have freezing and rebooting with no BSOD, and you have multiple keyboards and now a headset that doesn't show up in windows sometimes.
 
Please confirm the following questions:
1. Did you update the BIOS on the new motherboard?
2. Did you re-install all the chipset drivers once you put in the new motherboard? This could be helpful, so I would just go through the list from the support download page and reinstall all the drivers there.
3. About the CPU socket pins. What do you mean?
 
After all that...I'm inclined to believe that there's something corrupt in your Windows installation, which brings us right back to Bee's suggestion that we tried to avoid, which is to reinstall Windows. The reason for this is that you've tested all the hardware other than the GPU. We followed every clue to what it pointed at, and none of them have panned out. So even though I don't have any evidence to say your Windows installation is corrupt, I don't currently have anything else to point at. I would start with a repair, which does a fresh install of Windows' files, but keeps your files and apps. You can find a tutorial of how to do that here. The link they have for downloading the latest ISO of Windows 11 isn't quite right, so you can just go to the main download page and scroll down to the ISO option. You may have to reinstall drivers after this. 
 
As usual, I want to put in a note that I may not have thought of everything here, so if anybody else has more ideas for Raven to try, I don't want to limit them to only my suggestions. The only other piece of hardware we haven't touched is the GPU. The crashing isn't at load or any specific situation, it happens at random times and wouldn't explain all the USB connectivity issues. So I have no idea how that would cause this situation.

frankd3
If this ends up being a corrupt Windows installation I'll owe Bee a huge apology, which I'll be happy to give.
 
It keeps nagging at me that it's power related but I can't think of anything else to try, so that's out.

Same here. I mean they could try a different GPU just to rule it out, but I'm not 100% sure it would rule it out if it is indeed a corruption in Windows. That said, this is a really weird issue. I still don't know for sure what it is. I just don't know what else to suggest and now I'm like what if Bee was right? Of course, I'm not sure he is, and I can't guarantee that reinstalling Windows will fix anything, but at this point I can't say it's a bad suggestion as we're running out of alternatives.

They sent a board with bent pins?  OMG

RAVENEVGA
The motherboard I received had yet to have any update to bios or drivers.  It froze before I could do any of that.  I told this to the tech and sent the board back to them.  I sent a note about the socket pins.
 
And when I mention the socket pins, I mean before I placed the CPU in it, it seemed to have a few pins that didn't look like the others, or how the socket pins look on my original motherboard.
 
If there is a way to fresh install Windows 11, while still keeping files and apps, I'm good with that.  I'll use your instructions above.

So are you still on your original motherboard? Or are you on the replacement board with questionable pins?

Ah, OK. So I guess it's still possible there's a problem with your motherboard. So I'd say you have three possibilities you can try at this point:
1. You can try a different graphics card, or to put the borrowed 12900 in and use the integrated GPU. It won't do so well on games, but you've seen plenty of crashes outside of games so it could be worth checking.
2. You can try a third motherboard if they're sending you another replacement.
3. You can try to do the windows repair.

Seems like the windows repair might be the easiest, but I have read some conflicting reports on success with it actually preserving applications. It can preserve files, and is supposed to be able to preserve apps, but I saw a comments where people said it didn't give them that option. I have done a similar repair on windows 10 before and it kept everything. I'm hoping that's not too difficult.

I will say again, this is not a simple issue to diagnose. I can relate.

The tech said the following about HWiNFO64:  "Thank you for the images here, what does the bios say the temps are at? typically software's have had troubled history reading stuff like this properly"
I had attached images showing the section that showed the weird crazy temp fluctuations, as well as the Motherboard sensor readings that were not showing in that one section.  

RAVENEVGA
Okay,....so this is weird.  And I hope I don't jinx myself for saying this.  On Friday morning, I powered down my system [turning off the power switch on the back of the PSU], took the GPU out of the vertical mount, and then inserting it directly into the motherboard, then [ofcourse] powered it all back up.  Since I've done that, I haven't had any freezing or rebooting issues.  
 
Again, I hope I don't jinx myself, but wanted to provide this report here.

No you're not jinxing yourself. That is wonderful news.
Those riser cables have been known to cause a lot of problems when not pcie gen 4 rated or poor quality. I've never used one so the others can chime in.
I'm shocked that none of us thought to ask you if you were using a riser cable.
If nothing bad happens soon then you solved your problem.
I look for ward to your next report.

Well...it certainly had us chasing our tails for a while. I hope this continues to be a fix. As Frank said, the vertical risers are known to cause a bunch of issues. Sometimes things just need to be re-seated, sometimes they just don't play nice with 3k series graphics cards. I have seen a lot of people in the forums with problems from their vertical riser, but none of them had your specific set of issues.

frankd3
So whatever happened with the keyboard issue?
That wouldn't be related to the riser cable.

No, definitely not. I suspect that is a faulty keyboard, but I'm not sure because I can't remember if the motherboard was having issues with other keyboards as well. The USB issues and the sensor issues seemed to point towards motherboard issue for me, which is why I had originally advised the RMA.

So, it has been two weeks since I put my GPU straight into the motherboard, and haven't had any freezing/rebooting issues.  I still don't get how the vertical mount and riser cable could have been causing the issues, but not having problems since the switch around,........<shrug>
 
I'm still considering myself in a testing phase, though.