I recently built a new PC. However, I tried playing Immortals: Fenyx Rising on it and I keep instantly crashing. No blue screen, just a complete shutdown. I researched the issue and found that the issue could lie in faulty drivers, overheating, not enough power, etc. Well, I have downloaded the latest chipset and NVIDIA drivers. The BIOS, along with several hardware monitors reveal that I am not overheating. I have also tested my computer under load using FurMark and 3DMark and had no problems with shutdowns. I have also played other games on it, albeit not extremely graphically intensive. I have included the specs for my PC below. Let me know if there is anything else I should try before resorting to buying a new PSU.
SPECS
CPU- AMD Ryzen 9 5900X
MB- ASRock X570 Taichi
RAM- Corsair Vengeance RGB Pro 16GB DDR4-3600 CL18
STORAGE- WD Black 500GB NVME M.2 SSD/Samsung 860 EVO 500GB SSD/ Seagate Barracude 2TB HDD
GPU- EVGA GeForce RTX 3080 FTW3 Ultra
PSU- EVGA SuperNOVA GA 750 W 80+ Gold
SPECS
CPU- AMD Ryzen 9 5900X
MB- ASRock X570 Taichi
RAM- Corsair Vengeance RGB Pro 16GB DDR4-3600 CL18
STORAGE- WD Black 500GB NVME M.2 SSD/Samsung 860 EVO 500GB SSD/ Seagate Barracude 2TB HDD
GPU- EVGA GeForce RTX 3080 FTW3 Ultra
PSU- EVGA SuperNOVA GA 750 W 80+ Gold