Hardware

Hi

I have just replaced the main logic board and FCal Disk Back plane in one of our E280Rs and now we cannot get any out put to a console (or to RSC card). So cannot get to the OK prompt or any diagonistic output. There are no errors according to the system lights although the RSC card is reporting faulty internal disks. Whether the disks or working or not we still should be be getting at least to the OK prompt.
The main logic board has the same part number as the one we replaced and we swapped the old SEEPROM chip to the new main Logic board
Any Suggestions greatfully received

Thanks

Rob