I have tried a different DisplayPort cable (different brand and VESA certified). This system has had no issues running a 6900XT, 5700XT and RTX 3090 with CSM disabled and resize bar enabled. I am guessing contact ASUS support but thought I should also report it here. This exact GPU and display work without any issues on an MSI Z690 Force WiFi + 12900KF with CSM disabled. NO RISER CABLE, GPU directly in motherboard slot.ĬSM disabled, resize bar enabled, TPM enabled, Secure Boot enabled. Xiaomi Mi 34 display connected by displayport, no other displays (or cables) connected.ĪSUS Crosshair VIII Impact - Latest BIOS 4402 I have had the issue occur from a restart so it is not just powering on after a shutdown. Reset bios settings to defaults, reflash bios, shutting off the power at the wall after each shutdown, enable ErP in BIOS, increase 'POST Delay Time' in bios, try older bios version.įrustratingly, the system can work without issue for say 20-30 power ons, then the next power on it will fail. I am unable to reproduce the issue on demand, it is sparodic and occurs at random.

The Intel ARC GPU requires resize bar enabled and CSM disabled. This obviously enables CSM so I need to enter the BIOS and disable CSM any time the issue occurs. CSM settings have been changed for better compatibility' Occasionally the system fails to post with the error 'The VGA Card is not supported by UEFI driver.

Perhaps a timing thing where it is trying to initialize before a ready state or something. This is a tough one for you, I assume it is some issue with either the Intel GOP implementation OR ASUS reading/loading the Intel GOP.

Intel driver support