u/Conscious-House-2065

I have an i9-14900HX that I feel is the root cause of my system instability, but I'm starting to think it might be the GPU- RTX 4060 Laptop GPU. The crashes happen whenever I'm playing games, almost always the issue is 0xc0000005 from the game but I have been getting the occasional 0xc0000409 from MsMpEng.exe. (I'm viewing these errors from Event Viewer, the games themselves, i.e. faulty programming, are definitely not the issue here)

I have updated the BIOS, Windows, GPU.

I have done SFC and DISM checks.

I have reinstalled Windows and wiped my SSD.

I have run multiple memory diagnostic tools, as well as removing memory and swapping the slots.

I have done extensive tests on the CPU and nothing seems to ever indicate an issue. Cinebench, IntelBurnTest, many others.

One video recommended I try Unigine Heaven as sometimes the issue only crops up when the GPU is involved. Bingo, we found a program that can consistently crash with the dreaded memory exception.

My question now is- how do I determine the actual culprit, aside from just buying new hardware and swapping it out? Is there a way to be sure if it's my GPU or CPU?

My computer has degraded to the point it's nearly unusable. It was bought prebuilt from ASUS and is out of warranty. They say they won't honor this extended return policy for degraded chips, and as I understand Intel only offers warranties for chips sold in a box. Anyone have any luck with this or am I just screwed?