Can't boot UEFI mode on GA-Z170X-UD5

zard

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Sep 11, 2010
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Hi I recently built a system around this motherboard (GA-Z170X-UD5) and it will not let me boot in UEFI mode; the boot list does not show my GPT formatted drives, only the option to boot a UEFI USB stick or an EFI DVD. I tried to install Windows 10 in UEFI mode to a GPT disk but the installation wouldn't show in the boot menu, so I am currently booting from an MBR formatted SSD in Legacy mode.

I am using Intel RST RAID in Legacy mode but I believe I tried booting in UEFI AHCI mode with no luck.

Any help would be appreciated, thanks.