So it’s a WIndows box now basically then? , What a bout safe mode boot? Have you tried that? also what about a (live)LINUX on a USB will that boot?
Power supply is up t snuff +5v , +12V ,-12V you have a voltmeter?
Most windows PC’s will only do that if there is a Error in POST, Video, or RAM mostly , but bad bios maybe?
Leave the Secure boot alone…, from what you have described I’m looking at power or ram?
see if it will boot a USB drive with Windows 10/11 setup on it. Just to see if it will stay on after it initializes.
HTH
GL PJ
Emmc are finicky tech so if it’s spotty you get weird stuff. Give a SOLID visual inspection for any corrosion or FAT capacitors… You get a power supply with it? is it original?
Yes its Windows but i have no issues trying something else just to get the thing to boot haha
Live linux on USB does not boot, it doesn’t start loading the USB at all. It just shows a blank screen. Booting the UEFI USB option results in showing the boot options menu agian, selecting the legacy option results in a blank screen.
It does not boot the Windows USB either, can’t even get to recovery mode.
The power supply meets the specs from Seeed, not sure if its the original. The mainboard seems good as well, no corosion of burned places. BIOS boots without issues, so that part works.
I was thinking the same about RAM or power, since it has issues with USB boot. Will try another power supply if I have one!
Since its not booting live USB’s, I suspect either a setting thats not correct or an issue with the RAM. Installing it om emmc could be skipped by using an m2 solutions.
Okay I might have to quit me job since i’m no longer able to troubleshoot IT issues.
It was indeed the power supply that caused the strange behaviour. I had a screen next to the PC and checked that adapter and not the one from the Odyssey. It turns out that the guy who I bought it from supplied a Linksys power adapter with just 500ma instead of the 2 ampere needed. Swapped the supplies and Windows is running as it should.
Thanks for helping and thanks for pointing me in the right direction!