Enter serial number into Insyde Bios

[deneg]

Hi, I bought a new motherboard for my Lenovo IdeaCentre A740. When I start it always comes the error message "Error 00CE: Machine Type and Serial Number are invalid Manufacturing Boot Sequence willbe taken if no selection is made". I have tried on the hardware disk Maintaince enter the serial number that had not worked, there was always Eeprom Overflow. Now I'm getting stumped what I can do. Can someone help me here?Sorry for my English!