Acer Aspire E1-521 Acer Aspire E1-521 Notebook Service Guide - Page 63

Using the LAN MAC EEPROM Utility 1. In Windows OS, copy the following LAN MAC Tools to a bootable USB HDD device: • EEPROM.EXE (This is the writing tool of EEPROM) • MAC.BAT (This is the batch file for writing MAC value) • MAC.CFG (This is the configuration and data file for EEPROM.exe) Figure 2:30. Copying LAN MAC Tools 2. Use a text editor (e.g. Notepad) to open MAC.CFG. Figure 2:31. Opening Text Editor The file content is shown below. If necessary, modify the data. Figure 2:32. LAN MAC Values • WriteData='001122334455' • StartAddr=7A • WriteLeng=6 • KeepByte=0 System Utilities 2-22