How to fix the VRAM validation errors and crashes in S.T.A.L.K.E.R. 2: Heart of Chornobyl with Zotac RTX 5070 Ti 16GB XGAMING?

I was frustrated by frequent crashes in Stalker 2, with VRAM error code 0x000000117 appearing repeatedly, suggesting hardware aging. I tried overclocking the VRAM frequency, but it doubled the crash rate, which was a regrettable mistake. I used GamePP System Backup & Config Export to back up the config and roll back to a stable driver. MemTest86 confirmed the error rate dropped to 0/min and the system stabilized.