Qtip1318

my kids are not aloud on the internet at all and can only play on the computer with me. We play games like Stardew valley and terraria right now. I really only let them play games if they are playing together 

No. there will be basically no change.
 
I have both an RTX a4000 and RTX 3050 in my PC, and the 3050 being disabled or not changes nothing in terms of gameplay or frame rates.

Realistically you won't see that much of an improvement using two GPUs just to have extra monitors running. Screens are not that GPU intensive to run, it's only doing things like hardware encode/decode (think Discord streams or youtube videos) that are really gonna be a performance hit.
If you're paranoid then yes, two GPUs would work, I at one point had a 1050ti and 3060ti in the same rig at the same time in a similar setup when I used to mine. You won't need much for the second screen though, you could get away with a much lower power card like a 1650/3050/whatever suits your budget
 
If you're using two GPUs of the same brand this will be an issue and something you have to be careful for. A 1050ti would suit you great here but when its driver phases out you won't be able to update your graphics driver on your main GPU and use your older card concurrently. Unsure if this works cross-brand but also unsure if windows would throw a fit having two separate manufacturers running cards in the same system either.
 
TL;DR This setup isn't as worth it as you think it is. It is possible with some limitations that may crop up over time, of course with the limiters being how much trouble you're willing to put yourself through to get it working and how much you're willing to spend
This too, if you have an Intel CPU just re-enable the iGPU in your BIOS and you can use your motherboard's display outputs for your monitors (you can split up your display ports into two separate displays if you don't have enough). This is the easiest way assuming you have it. I'm sure AMD's G-line of CPUs can do this too but I'm not familiar with the process

using ethernet 

Thanks for the help I found a way to leave my isp 

I’m looking at a new build for gaming/plex server 
and I am look at what ram I should get there are to kits that I have my eyes on right now don’t know what is better 2x16 g-skill trident z 3200mhz or 4x8 g-skill trident z. I like the idea of having all 4 dims full but I don’t know if that will come at a cost I don’t think I will ever upgrade to 64gb. Maybe on a new build with ddr5 when it comes out 

Maybe try doing a DIY Ikea LACK rack? I hear they fit standard sized server racks, although they aren't particularly high-capacity. Still, at $13 CAD, they're a pretty cheap option, though you'd probably need like 3 of them... and maybe some reinforcement so they don't crumble...
 
IKEA LACK: http://www.ikea.com/ca/en/catalog/products/90302060/#/20011413
LackRack Wiki: https://wiki.eth0.nl/index.php/LackRack

Amazon put $50 on my account for my honesty when we thought it was theirs, but I have a feeling UPS and Apple won't say anything, but I'm okay with that. I feel good doing the right thing here. I could have kept them, no one would have ever known, but in the end, they weren't mine.

thanks man that is really help full

vary nice job I love to see new people build there first computer 

If that cable had a surge or a short on it for some reason that would cause it.
@Qtip1318 I hope that whatever happened to that cable/PSU didn't damage other components.