Can I Install uefi bios on gigabyte 78lmt-s2 ???????



All firmware is custom.

BIOS and UEFI refer to the older and newer PC firmware interface standards. They do not refer to particular firmware implementations. The firmware for a particular set of Asus and Gigabyte motherboards may be BIOS or UEFI compliant but the firmware for an Asus Z87 Pro cannot be installed on a Gigabyte 78LMT-S2 or vice versa.

Most vendors licence a reference firmware implementation from companies such as American Megatrends or Award. They then customize it (or pay to have it customized) for their own boards. If you turn off the boot splash on an Asus motherboard you'll see a big red AMI logo.

After the firmware has been loaded and performed its tasks, the system will be setup in a completely neutral state. If the firmware is fully BIOS/UEFI compliant any operating system should be able to load and run without caring about the manufacturer of the motherboard or the motherboard's firmware.

Every once in awhile someone in some community will release an unofficial modified firmware package which contains tweaks or modifications to the vendors official firmware. This may include patches made through reverse engineering or updates to various boot ROMs that are tacked onto the motherboard's firmware. However, there's little room for a complete reengineering to turn a platform with a BIOS compliant firmware into a platform with a UEFI compliant firmware. The biggest reason for this is that BIOS based firmware is typically stored on a small 8 megabit (1 megabyte) EEPROM, while UEFI based firmware is stored on a much larger 64 megabit to 512 megabit (8 to 64 megabytes) Flash storage device.