I have an R5600x with a B450 Tomahawk motherboard. Up until last night it had been running perfectly at 4600Mhz with game boost on and CPU temps rarely reaching above 70C. Last night I swapped out my RAM from a 2x8 to a 2x16 3200 CL16 (same exact brand and model as before). I made sure XMP was enabled in bios and when I launched I noticed my speed reset to 4275mhz. And now when I launch games (DA Veilguard specifically but happens in others) my CPU is maxed out and temps are at 100C+ and my computer shuts off. I thought maybe I pushed a little too hard on the RAM when seating it and maybe separated the heat sink from the CPU. So today I removed the heat sink, cleaned the old thermal paste off, reapplied and reinstalled the fan. Upon testing I found the same issue as before. I have also tried without gameboost at stock speeds and while it doesn’t overheat everything stutters and runs very slowly. Please help with some ideas on how to fix my PC.