Need help finding source of crash

@Starscream195  A prebuilt computer should have a power supply that's technically sufficient for its hardware.  You might run into trouble if you overclocked the components, but in that case  you'd probably have figured out the system was unstable when testing the overclock.  The other possibility is a faulty PSU, but that typically doesn't look like the crashes you're describing.

Your dxdiag shows access violations from Sims 4.  These mean that the game tried to access a memory address in an improper way, although none of the crash info would ever tell you what function in-game was the culprit.  These kinds of errors can in theory be caused by hardware issues, for example a bad memory module or failing hard drive, but in the absence of any other indicators of hardware problems, and your info doesn't have any, it's much more likely that this problem is confined to Sims 4, and in particular your mods or possibly your custom content.

I understand the crashes are infrequent enough to make testing your mods and cc difficult, but one thing that would make it easier is if you could find at least one crash that was reproducible.  To that end, try saving often, I mean extremely often, so there's a good chance the same event that causes a crash once is about to fire at one of your save points, and you can load it over and over to test.

Another potentially useful approach is taking your lastexceptions, if you have any, to the MCCC Discord and asking for help.  The server has bots that can read your files and provide a likely culprit, and the support people can take a closer look if necessary.  They might be able to tell you that a particular mod is responsible even without the crashes being reproducible.