1) Check programming voltage of EEPROM
JP18 1-2 12V (Intel -i- and MX Chips)
JP18 2-3 5V
2) Do not load any memory manager.
3) Start DOS and execute
"AFLH52B" and "FLASH533" are two program versions used to update Flash-EPROMs.
In some cases program may abort before it starts the programming - then you can try the other version.
4) After programming, turn off your system for a moment.
The letter "I" means, that I/O-Chip must labeled "ITE".
Read the motherboard manual 555a.pdf in the manual folder.