NVMe boot at mainboard Asus P8H77-M PRO

BIOS/UEFI Modding BIOS Modding Guides and Problems
5

Trying method 2 for Asus mainboards described here with freshly installed Windows 10 pro 64-Bit en_US (to avoid any language mismatch) and chipset driver downloaded from Asus gives following results:

  • Flash the original BIOS by running the following Command Prompt (as Admin): afuwinx64.exe <NAME OF THE ORIGINAL BIOS>.CAP Works.
  • Remove the capsule header from the modded *.CAP BIOS file and save the modded BIOS as *.ROM file. Works, done with UEFITool.
  • Flash the modded BIOS by running the following Command Prompt as Admin: afuwinx64.exe <NAME OF THE MODDED BIOS>.ROM /GAN Works.
  • The UEFI BIOS should now be fully re-flashed and updated! Reboot and give it a try! Fails! Mainboard is dead, no visible screens, no beeps from speaker after reboot. CMOS reset & temporary CMOS battery removal doesn’t change anything.