A few months ago, my PC began to randomly shut off mid use. It first happened when I was in the process of downloading a game. Did some troubleshooting and concluded it was the power supply. Replaced it, and it seemingly had no issues. Today, however, I again was trying to download a game (this time while also running RDR2) and it shut down. I restarted, and attempt to go back to just downloading the game, and it shut down again. Been looking through the event viewer to try to find any information there, but I haven't had any luck. It doesn't seem like my PC is overheating. I've got 7 fans in there and cleaned it out when I replaced the power supply. What else could be causing this? It's stayed on long enough to type this post. It is seeming like it will shut down whenever there are several processes running at once. Could it be my RAM? Faulty hard drive? What are some other ways I could troubleshoot?
Specs:
AMD Ryzen 7 5700X
32GB Corsair DDR4 RAM
Corsair RM750e 750W Power Supply
Samsung SSD 860 EVO 1TB
Samsung SSD 970 EVO Plus 1TB
WD SSD 2 TB
MSI Geforce RTX 3060 12GB
ASUS AM4 x570-Plus Motherboard