system crashing

I recently removed and reinstalled the motherboard on my pc. Since then it has been intermittently lagging for a bit right after booting up, but then it stops doing it once I play games and stuff. It's also doing this random thing occasionally where the screen suddenly goes black in the middle...

Hello, I've recently upgraded from 2x8GB of DDR4 RAM in dual-channel to 4x8 GB of RAM in dual channel. First I must say that kits are not the same, please don't judge me, budget issues plus lockdown kind of forced me to only working store in the vicinity. First kit is G.Skill Aegis...

while I am playing path of exile game sometime randomly monitor showing no single and going blank at this point even system is not responding . any function task manege not working and only way is to power off system afterword restarting system run fine i see mostly issue during game-play

So I have been getting a lot of BSOD recently (in the past month) and the stop codes I have been receiving are: WHEA_UNCORRECTABLE_ERROR SYSTEM_SERVICE_EXCEPTION IRQL_NOT_LESS_OR_EQUAL UNEXPECTED_KERNEL_MODE_TRAP DRIVER_OVERRAN_STACK_BUFFER DRIVER_IRQL_NOT_LESS_OR_EQUAL...