New PC Build – Random Crashes & BSODs – Need Help Diagnosing

[worstnerd]

1/
Built a brand new PC with all brand new parts. Not my first time building, but this one’s been giving me serious issues I just can’t pin down. Hoping someone out there can help me out.

2/
🔧 Specs:
• CPU: Intel i9-14900K (5700 MHz)
• Mobo: ASUS ROG Maximus Z790
• RAM: Corsair 32GB x2 DDR5-6400
• GPU: RTX 4080 Super 16GB
• PSU: Corsair 850W
• SSD: Samsung 990 Pro
• OS: Win 11 Pro (previously tried Win 10)

3/
Initially got a ton of BSODs. Found out it was partly related to the CPU (common issue w/ 14th gen Intel). After addressing that, BSODs reduced but didn’t completely stop.

4/
Main issue now:
Random game crashes – no error, sometimes instant closes, sometimes BSODs with things like “Hypervisor,” “Access Violation,” etc. Can play 10-20 mins max before it happens.

5/
🧪 What I’ve tried so far:

• Reformatted Windows 10 (10+ times)

• Upgraded to Windows 11

• Ran Windows Memory Diagnostic – no issues

• Stress tests (CPU/GPU/RAM) – all passed

• Reinstalled drivers

• Searched forums, YouTube, GPT advice

• Even took it to GeekSquad (no real help)

6/
Games I’ve been playing: Dota 2, BDO, Dune Awakening. All randomly crash. System is fine during regular use. Rare BSODs still happen even on idle occasionally.

7/
Starting to suspect a few things:

• PSU (850W should be enough but maybe it’s unstable?)

• Windows key from G2A (maybe weird activation/validation issues?)

• GPU itself (last resort: RMA it?)

8/
I've now ordered a 1000W PSU to test that angle. If that doesn't work, I might try RMA’ing the GPU next.

9/
Any insights or advice would really help. If you’ve experienced something similar or have suggestions on deeper debugging tools/tests – I’m all ears. I feel like I’ve tried everything. Please let me know if I could provide any additional information to solve this issue. Appreciate all the help in advance.