5600G and B550M not booting

[tamudude]

Trying to install hrev55792 64-bit via USB. Specs: AMD 5600G, 16GB RAM, Gigabyte B550M DS3H AC mobo, three SATA SSDs. Booting Haiku via UEFI USB, the Haiku screen flashes but before any of the icons below it load, the machine instantly reboots. Please let me know what info I can provide to help debug.

[diver]

Try to disconnect all of the SSD drives and bot from usb. Does the first icon of the boot logo get light up?

[tamudude]

I disconnected all drives. Took a few tries but was able to boot into USB by selecting failsafe graphics. Got glorious 3440x1440 on my WQHD monitor during live session. Subsequently, plugged in only one SATA SSD (with a previous Haiku install). Was able to install seamlessly onto existing partition. Booting the machine via rEFind, it sees two Haiku disks. I have to select the second one. I have to select Failsafe graphics and I have to select 1280x1024 resolution. It then boots. I have connected a second SSD with Windows on it and the machine still boots via the above tweaks. I have not yet connected the third SSD which has FreeBSD on it.

[tamudude]

Still having a lot of trouble getting the system to boot consistently. I have updated to later builds and it will flat out not work now. Sometimes I get to the Haiku screen but before any icons below it light up, it reboots. More often than not, the system simply reboots. If at all, I can sometimes get it with from old build hrev55792 with safe mode, failsafe video and 1280x1024 resolution. I saw that I had an old haiku_loader.efi in /ESP so I used version from latest build. Nothing seems to help. Is there anything else I can do to troubleshoot?

[tamudude]

Update: I have figured out a way to get the machine to boot consistently. I have to select 1024x768 resolution and "select failsafe graphics driver". The machine boots consistently using these settings. At this point I just have to wait until there is better support for AMD graphics via HDMI. I believe this ticket can now be closed.