The chip from arrived flashed with latest BIOS vers 3701, however, DF44Editor revealed no settings for MAC, UUID and S/N. Using a GQ-4x4 SPI programmer, I read the contents of the good BIOS2 chip into a bin file and used the DF44Editor program to verify the presence of my unique MAC address, motherboard serial number, and BIOS UUID (thanks to all who developed FD44Editor!). Device_ID was "FFFFFF" while it should have been "EF4018". ![]() ![]() My SPI programmer couldn't read Device_ID, Manufacturer or chip Device Type, which are always present from the chip manufacturer. To replace the corrupted BIOS1 chip, I was able to clone my good BIOS2 chip to a new BIOS1 chip that I ordered from They are both Windbond 25Q128FVIQ EEPROMs. It would enter an on/off post loop with Q-code “00”, a situation others have experienced. ![]() On my dual BIOS R5E, I used the COPY BIOS2 to BIOS1 command, which corrupted the BIOS1 chip. Sorry for my previous questions but I found a solution with help from the good technical info on the forum.
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