Taichi x670e + 4090 FE Not Posting

I have been running the pc for 6 months without issue and took the 3.01 bios update which was a HUGE mistake. My gpu suddenly is not initiating and even after 100 reboots it will not get recognized as a video source and I am forced to use the iGPU. I have tried to roll back the bios and nothing has worked. I have gone from BIOS 1.09 all the way to 2.02 and every single bios does not start up the gpu as a video source.

This appears to be a known issue. Is there a specific BIOS that i just overlooked and what else can I do. I have bought new display cables, I have swapped power cables to PSU (seagate titanium level 1300W PSU), i have now tried to reinstall windows and that is not working. This is pretty frustrating. Is there another bios that needs to be released? Jiar acan the forums and there seems to be tons of folks with this issue and most have said ?œjust buying a different brand mobo fixes the issue?? If this isnt resolved soon ill be forced to do the same thing.

How scary mate, I receive this week another X670E Taichi for my 7950X3D, and the truth is that I also have my doubts. Let's go with you: I would try to disconnect EVERYTHING instead, and also remove the components, even the Processor, remove the battery from the battery for a few minutes, put it back in, download the BIOS 3.01 again, rename it to CREATIVE. ROM, removed all the components, just connect the power cable of the ATX 24-pin motherboard, insert the USB stick with the renamed BIOS, and the USB formatted in FAT32, place it in USB on the back of the Board indicated for the Bios FlasBack (not in another) and that is marked with a box, give the BIOS button 3 seconds and see if it flashes, it would make sense that it would update you well in a few minutes. Then connect and install all the necessary drivers... EXCEPT for the 4090 FE (save it for last). And when you have your Windows with everything updated, turn off the PC and install the 4090 FE as if you had just bought it, but I would do it with "internet disconnected" so that you don't install the generic Windows drivers,.... and you will tell us. Good luck and greetings. PS: Excuse my way of expressing myself, I use a translator.