I know this is an old post but anyone else that can't get the M5 CIMC GUI to load, make sure you're using HTTPS in the URL. Previous C220 models didn't require this.
Simply changing these BIOS options does NOT create a "Windows Boot Manager" entry in the boot order, which is required for Windows to boot. If you have an existing Server OS that you convert to GPT, there are additional steps in order to add "Windows...
For those (like me) who have an existing server OS on MBR but then convert the OS to GPT, there's an additional step or Windows won't boot: After enabling the BIOS boot and HBA PCIe for UEFI: Simply changing these BIOS options does NOT create a "Wind...
