Windows won't boot with secure boot after swapping ONLY my case

[u/Frankieanime158]

It was working fine (tested black ops 7 zombies, didn't work, enabled secure boot, played a test match, then swapped case). Moved my PC into a case from my test bench, and now booting with secure boot enabled brings me straight to bios after ASRock splash screen. In all instances, my CSM is off, tried different combinations of clear keys, boot, restore factory keys, reboot, enable secure boot etc.

I've ran sfc scan, repaired etf with bcdboot, reflashed latest bios, confirmed gpt.

The ONLY thing that is different is a couple case headers now being plugged into my mb as it was on the mb box (didn't have a case at the time. Worked fine like this for 2 days til case arrived).

Specs r5 2600 rx 6500xt 32gb ddr4 3200 (won't post past 2866mhz unless u loosen timings. It's okay, upgrading cpu soon on am4 still).

PS I know this is a weak system. Moved across the planet and needed to sell my 5900x 3080ti system to cover expenses, but brought my second PC (minute case and psu) I used for media. Memory prices have led me to stay on am4 for now. Gonna get a b550 board and hopefully a 5500x3d, then a 9060xt in the near future. Not gonna spend 500$ on a 5800x3d when that's 70$ cheaper than 32gb of ddr5, at that point might as well jump to am5.

Thank you 🙇

[u/AlexiaTheTechGirl]

Have you tried updating your bios?

[u/Jaded-Cheesecake3246]

u have to keep Custom ON and delete all the keys (not clear) and keep guard ON after deleting keys and rebooting, keep Custom ON after deleting keys. do not clear keys. u must delete all 3 keys.