MAG B460M Mortar - Problems with new BIOS update 191

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loga161802f1

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New bios update 191 gives me a BSOD if I ever try to boot from a windows 10/11 media creation tool media. If you turn TPM off, you can boot from them. I think this is a bad BIOS update.
 
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I changed the CPU out from a core i7-10700 to a core i5-10500. Still doing it. I even took the CMOS battery out and back in. Frustrating. I did notice something, it ONLY does it from the usb 3.0 header, if I plug it into the motherboard directly it does not BSOD.
 
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fatedust said:
Do you mean the front panel USB 3.0 ports?
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Yes. When I have TPM enabled, I can boot from the Windows 10/11 media creation tool thumb drive without bluescreening by plugging into the back usb ports on the motherboard. When I use my external usb 3.0 box that plugs into the onboard usb 3.0 header, it does blue screen. What's even crazier is if I boot the thumb drives from the motherboard internal usb 2.0 header that give me my 2.0 ports in my box...it doesn't blue screen but it does crash with a solid light blue screen with a W11 drive.
 
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Update. My rufus windows 11 25H2 v2 USB was able to boot sometimes, and my Windows 10 media creation tool USB will boot sometimes, but will BSOD too, pretty much if I get the windows 10 or rufus windows 11 to boot, they won't the next time and BSOD every time after. Windows 11 vanilla from media creation always BSOD.

It's pretty weird that it only happens with my front panel plugs that come from the on-board USB 3 header. Plugged in the back no BSOD's with TPM on.
 
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