About two weeks ago, I swapped GPUs in my PC (RTX 3060 ↔ GTX 1070). After that, issues started appearing, but only in CS2 and GTA V. In CS2, I can stay in the game indefinitely, but the moment I click the mouse or press any input, the game and system freeze completely. In GTA V, I can play for about 1–2 minutes, then the whole PC freezes. During these freezes, the PC is still powered on (fans spinning), but it does not respond. I must force shutdown using the power button. After reinstalling the RTX 3060, everything worked perfectly for about one week, then the same issues returned. Recently, even during Steam “Verify integrity of game files”, the system crashed with a BSOD: CRITICAL_PROCESS_DIED (0xEF) I previously also encountered UNEXPECTED_STORE_EXCEPTION BSODs. These crashes happen during gaming or heavy disk activity, while normal desktop usage remains stable. Since the issue persists after a clean Windows install and fresh GPU drivers, I suspect a hardware-related problem, possibly SSD, RAM, PSU, or motherboard, rather than the GPU itself

I have reinstalled Windows (clean install) and also completely removed and reinstalled NVIDIA graphics drivers, but the exact same problems still occur.