Hiveos not booting without a monitor

Hello guys. I have an msi z490-a pro motherboard, with 2 3080s (FHR) and 1 3060ti v2. Had been mining throughout on windows which used to boot headless but ever since I have put hiveos in a usb stick, I have been unable to get the machine to boot without connecting a monitor. My bios settings are also the same as I had kept for windows. I have tried everything including an hdmi dummy plug but haven't had success. Any help / suggestions would be appreciated.