Hello, recently I realized that the PC I built wasn't up to the task of my newly bought RAM. I also realized I had bought higher RAM than the one I had. So now my PC is all sorts of un-optimized and potentially f'd.

I recently had a blue screen while playing a very un-intensive game, and from then on without fail any game I play crashes after a few minutes, maybe even up to an hour in.

It's probably to due with my CPU not being able to run the RAM and the mismatch of RAM. So I'm looking to upgrade and swap out my stuff. I'm going to list the entire build here, but if you think I could keep the stuff I have whilst upgrading others, that would be appreciated. I don't have a lot of money right now due to holiday gifts, so this would most likely be something I get next month. My budget by then would have to be at maximum, 800 dollars (I'm starting college so I'm trying to keep costs down, and hopefully it can be even lower since I'm swapping stuff out). I play games like heavy modded Skyrim SE, Baldurs Gate 3, Dragons Dogma (will be playing DD2 when it releases), Resident Evil games, Elden Ring, and Diablo VI.

Specs:

OS: Windows 10

CPU: AMD Ryzen 5 1600 Six-Core Processor

Motherboard: B450 TOMAHAWK MAX II

Memory: two G.Skill DDR4-3200, and two DDR4-3600

GPU: NVIDIA GeForce RTX 2060

Power Supply: CORSAIR RM RM750, 750 Watt, 80 Plus Gold Certified