SO YOU'VE BUILT YOUR OWN PC
It has been a long time since I've built a computer from scratch.
The first computer I built was a kit that I had to solder together in about 1981 - a Dick Smith Super 80.
Since then, being in the computer business and looking after the best interests of my non-technical customers, there's not been a lot of good reasons to build computers from collections of parts (as pictured at top).
If you want to build your own computer, pandemic economies aside, it can often save you money.
But you'll be putting in a lot of work (labour/hours) free of charge and you'll be managing any failure and warranty issues yourself.
If something goes wrong you'll have numerous suppliers and manufacturers to hunt down for satisfaction. Each with their own terms and warranties.
It definitely doesn't make sense to pay me to put together or troubleshoot your machine. Any savings you've made will disappear fairly quickly.
It may be that you've bought parts that aren't designed to work with each other, or are otherwise incompatible or unsatisfactory.
Regardless, you've invested now and you want/need a working computer.
I can certainly talk to you about how best to approach finding a cost effective solution to the problems with your home build.
IMPORTANT: You should be aware upfront that I cannot assume any responsibility for the work you've done, the parts you've selected, how they've been treated or execute warranty claims or related representation to suppliers i.e. I don't know what you've done and I am not going to lie about it to manufacturers.
Contact me to discuss where you're at and the options for sorting things out.