How to force which graphic card to use during POST

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   Hi

So I'm trying to run the following setup with an ASRock x299 Professional Gaming XE board:

In Slot 1 (closest to the CPU) I have a nvidia 1080Ti.
In Slot 3, I have an AMD Vega Frontier Edition.

I have 3 screens, all connected to the AMD vega. (The AMD is my preferred card for the work I do)

With this setup, I won't see anything during POST. The screens only become active once Windows has booted.

To access the BIOS settings, or see anything while booting, a screen must be connected to the nvidia card. It always use that card as default which I don't want to.

Is there a way to configure which card is going to be used for POST and BIOS settings? I can do that with my Gigabyte Designare MB.

Ideally, I would even like to fully disable this card in the BIOS if need be, like it wasn't even installed. But I haven't found a way yet.

Any help would be greatly appreciated.

Thank you

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jyavenard Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 Mar 2018 Status: Offline Points: 22	Post Options Post Reply Quote jyavenard Report Post Thanks(0) Quote Reply Topic: How to force which graphic card to use during POST Posted: 27 Sep 2018 at 6:03pm
	Hi So I'm trying to run the following setup with an ASRock x299 Professional Gaming XE board: In Slot 1 (closest to the CPU) I have a nvidia 1080Ti. In Slot 3, I have an AMD Vega Frontier Edition. I have 3 screens, all connected to the AMD vega. (The AMD is my preferred card for the work I do) With this setup, I won't see anything during POST. The screens only become active once Windows has booted. To access the BIOS settings, or see anything while booting, a screen must be connected to the nvidia card. It always use that card as default which I don't want to. Is there a way to configure which card is going to be used for POST and BIOS settings? I can do that with my Gigabyte Designare MB. Ideally, I would even like to fully disable this card in the BIOS if need be, like it wasn't even installed. But I haven't found a way yet. Any help would be greatly appreciated. Thank you

Animalm4st3r Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Jan 2018 Status: Offline Points: 226	Post Options Post Reply Quote Animalm4st3r Report Post Thanks(0) Quote Reply Posted: 28 Sep 2018 at 5:44am
	Thats the first time ever that hey heard of someone trying to Use AMD and Nvidia GPU's outside of mining cause as far as i know that only works under certain cicumstances with specific motherboards and software

Animalm4st3r Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Jan 2018 Status: Offline Points: 226	Post Options Post Reply Quote Animalm4st3r Report Post Thanks(0) Quote Reply Posted: 28 Sep 2018 at 5:45am
	During Boot the System only displays the POST Screen on IGPU or the Primary Graphics adapter wich is always the one in Slot 1