Let me start this off with something i am sure is said a lot here, I am fairly new to unraid. recently i tried it out on an old laptop with a bunch of hard drives on USB drives and got the feel for it and seen it would do for me. i then ordered hardware i needed and did the most fun part of all projects and built the system.
Asrock z690 pg riptide, 12gen i5, 64gb ram (non ecc), an old 1080ti, 2 2tb m.2, a bunch of random old hdds,
so i moved the drives to the tower (knowing i would likely have to rebuild the config)
so you now have the back story for context
now onto the issue at hand and what i have done so far
so i booted the system for the first time and checked the bios for the recommended settings and confirmed they were set (most were already) and i then set the usb as first boot. great now i save and reboot and get the unraid boot menu and move past it. it then gets to the "Verifying bzfirmware checksum" then "bzfirmware checksum error"
i did turn secure boot off and have tried several other bios settings on and off in several other configs to try to resolve this i have removed all drives and left only the 2 m.2 ssd. i have flashed the USB with a fresh copy. i have tried a totally brand new Samsung 120gb USB over the several 16gb Sandisk usb's i had around the lab. i was using to begin with. I have also just for S&G's installed truenas scale on it to see if i could get anything (not windows and NAS related) on it and i was able to get that going but due to truenas sucking for a lot of reasons as of me completing this post i have for the moment gotten truenas scale to work on the system but i do not want it as i prefer unraid. any ideas on what to try to get it working the way i want to would be very grateful.
****RESOLVED****
for me the resolution was the ram that i was using in the system, to test this i tried to boot the system and then powered it off changed the ram stick with another known working one (the one that was in the system was known working but just cheap) and then tried to boot again. and the system booted. hope this helps someone in the future..