As SLIC I wanted to be ACPI2.BIN I renamed all other original acpi tables already present increasing by one (for example ACPI2.ROM become ACPI3.ROM) and so on 'til the end. In Bioscod1.rom (which is the only one having RSDT inside it) I changed RSDT table with the OEM info matching SLIC one. That's all.
@China4Ever / all Some bioses got .exe and cannot be modded directly. My idea: Someone try to edit exe with xn resource editor or / and resource hacker. Maybe this tools are able to extract bios file from exe and after editing insert again. I can test it soonest tomorrow! Yen