After enabling Secure Boot, the Power Loop operates as intended.
After enabling Secure Boot, the Power Loop operates as intended.
I have a Maxsun H610M 666 WIFI D5 board and wanted to turn on Secure Boot. It asked me to add a Platform Key, so I went into the BIOS and entered one via a custom option. After that, it allowed me to enable Secure Boot. I saved the changes and left; the system started looping briefly before stopping. When I turned it off and reset the BIOS by removing the CMOS and shorting the jumper, it kept looping but with the VGA light on. Now I have an RX 6600 and there were no problems before. After enabling this feature, I tried with a previous card (RX 580) and it also looped when the VGA light was on. However, if I disconnect the GPU, it stops looping and just sits idle. I can’t connect it through the motherboard since I don’t have integrated graphics. I’m confused—could the GPU be dead, or is there an issue with the platform key compatibility? I’m unable to boot into BIOS because it shows a black screen.
I've attempted resetting the CMOS and shorting the jumper to clear it, and even tried booting without any drives connected just to access the BIOS. The VGA light on your motherboard stays on when the GPU is unplugged, which makes swapping CPUs with an integrated graphics possible so you can use HDMI for a POST.
What operating system are you using? Besides Secure Boot, did you activate any other features? Enabling secure boot UEFI requires specific settings, and the system must be set up as a UEFI installation on your drive. You can't just modify BIOS and expect it to function.
Windows 11, it seems you might not have set up UEFI Windows yet. You can remove your M.2 SSD and perform a fresh installation of Windows.
According to what I understand, you can only install Windows 11 using an UEFI setup. The last operating system that supported legacy was Windows 10. I suggest removing the disk and booting without it to check if you can access BIOS again. Because resetting the UEFI seems necessary. Then attempt the installation with a different disk.
I just tried booting it without any drives and it power cycles still, I think I bricked my Motherboard, though it does not explain why when I take out the GPU it doesn't power cycle, but I have no way if knowing since I dont have intergrated graphics if there is an output, so what should I do from here in regards to my mobo, should I go get the Bios Chip reflashed by soldering it or buy a new one
They mentioned taking out the GPU, which also clears the UEFI setup. Do you have an older GPU nearby that you could try to connect and check the BIOS?
I used an RX 6600 with an older RX 580, which kept restarting the system. I changed the power supply and repositioned everything, but nothing worked. I borrowed a friend’s motherboard, and all components booted, yet I’m unsure how enabling secure boot and adding a platform key might cause such issues.