New Member AMD Motherboard Thread

Hello and welcome to the forums xyirox. I have made a thread for you here.

Hi - it seems we can't post threads to see if other people are experiencing this issue?

Is there a known issue with BIOS 4.20 hard-locking the PCIe GPU?

I only ask as this issue started as soon as I updated to BIOS 4.20.

Not just a PC crash, purely a dGPU lock-up... when it happens, the PC has to be powered off, unplugged and then either power-flushed (hold down the power button to get the PSU to flush the residual power) and then then left for >24h or the GPU has to be removed, unplugged and then re-installed!

When this happened the PC doesn't even crash - the APU continues to work perfectly and I have now plugged my 2nd and 3rd screens into the APU, so I don't lose any more work.

If I do a regular power off and back on, the GPU lights stay off and I just get a red LED on the motherboard.

This happens VERY repeatedly from my main OS (Nobara Linux 43) if I trigger stnadby, but also less consistently in Windows11 and even once from the BIOS!

I'm interested to know if this is a known issue, can I safely roll back to a known good BIOS and if so, what is the recommended version?

System spec:
Ryzen 7 7800X3D, ASRock X670E Steel Legend, RTX3080Ti Founders Edition, 2x16Gb Teamgroup T-Create Expert, various M.2+SATA drives (2x 2Tb Samsung 990PRO, 1Tb WD SN850, 8Tb SATA WDRED, 2Tb SATA Seagate).