For example to use Hi-Fi H77S and ATI HD 7750 VGA card, please follow the instruction to achieve UEFI VGA card boot.
System requirement:
1. motherboard need to support UEFI fast boot. 2. OS only support Windows 8 64 bit(UEFI mode for installation). 3. VGA card update latest BIOS for support UEFI.
BIOS settings:
1. Goto BIOS [Boot] menu CSM Parameters.
2. Boot option filter and Launch video opROM policy set to UEFI only.
3. Save BIOS setting and reboot system.
4. Goto BIOS [Boot] menu, set Boot option for Windows Boot manager as first boot device.
5. After next boot up, system will run as UEFI VGA card boot.