


If playback doesnt begin shortly, try restarting. I can't think of a possible downside to having that ability in the BIOS, or a reason for removing it in BIOS 1704. Building Your Rig At Home Step 5 - Asus Z370-A Bios Update and Multi GPU Settings. Such essential cookies will help you store your unique sign-up ID number, authentication data, the data you inserted, as well as settings and preferences (such as your preferred language) while using ASUS products and services. I don't know if this was a purposeful change on Asus' part, but it would be very useful for my use case if they would incorporate the ability to set the primary display back into future BIOS releases. The only issue I see is that under System Agent configuration, the system agent bridge is listed as Kaby Lake (instead of Coffee Lake). I think I have saved profiles on my USB stick for almost every BIOS version since 1701. But for each distinct BIOS version, you will need to key in your settings manually at least once. So far, the build seems stable under the 1602 BIOS. Once you save a 3101 BIOS profile on a USB stick, you can reload it whenever you are using 3101 (and only 3101). I knew however that 1602 was stated as being compatible when it was released ( see this post) so I gave it a try in order to fix my issues. I am running a 9900k with this build, and 1602 was released to introduce 9th gen compatability, but the Asus website for the Maximus X Hero now states that 1704 is the recommended BIOS. So as a bit of follow up in case it proves useful to someone in the future, I had to rollback from BIOS 1704 to BIOS 1602 in order to be able to once again see the option to set the primary display under graphics configuration.
