Question RTX3090 BSOD

Nov 29, 2022
Nvidia RTX3090
Ryzen 9 5900x
32GB 2666MHZ DDR4
Corsair HX1000W PSU
Corsair H150i Liquid cooling
Windows 11 64 Bit

Hi, recently installed a 3090 and getting BSOD on certain games, VR titles in particular - as a note it was a 2nd hand card so I already expect that's where the error is, I'd just like to make sure it's nothing else.
On BSOD I'm getting 'Kernel Security Check Failure.' Following the tests here
There were no failures detected and all core temps seem fine. Annoyingly I took it into a repair store and they couldn't replicate the issue at all and it passed their stress tests. I took it home and within an hour it happened again. Any suggestions to isolate / fix the problem?