X670E Pro RS disable iGPU

Before updating the BIOS using FlashBack, you have to do a Load Setup Default and very important: if you have installed an external GPU like almost everyone, you have to change the GPU priority to the Internal or iGPU from "Onboard Devices Configuration/Display Priority". Since you had previously installed an external GPU, even if you remove it and then do a Load Setup Default this value will appear by default as the Preferred Video Card: The External One, and that is what you have to change before updating the BIOS.
Only connect the 24 pin connector on the Motherboard and nothing else, no CPU, RAM, GPU, Fan cables, etc... nothing, just 24 pin, put the USB memory with the renamed BIOS in its rear port and indicated as BIOS, and press the BIOS FlashBack button.
When you re-enter the BIOS using the HDMI or DisplayPort cable on the back of the Motherboard, change the Preferred Graphics Card value back to External, reassemble everything and problem solved.

maxolini wrote: killroy2963 wrote: Just download bios version 1.30 AS05, and yes use the instant flash, then adjust your bios settings. No you do not need to reset before flashing. I forgot to mention that i have B650M-HDV/M.2 but this should not matter?

I don't think so

Just download bios version 1.30 AS05, and yes use the instant flash, then adjust your bios settings.

No you do not need to reset before flashing.

it's stable for me, you need to download and flash to bios version 1.30 AS05. Under GFX configuration, look for "auto detect discrete display", enable this setting.

I have the same problem with bios version 2.0 and 2.02, they removed "enable discrete gpu" setting. Right now only way it seems to get it is using bios 1.30 which Im currently on and can disable igpu.