We have been trying to upgrade a switch supervisor to the Sup 720.We have followed the recommendations increased power supply, upgrade fan, however, we did test and bake in the software on an E class chassis in slot 5 and worked for 3 days. When trying to start the card up in the 6509 we are getting orange lights across the board and console is spitting out characters and stops. My question is. Is the configuration different when installing in the 6509 E class chassis compared to the 6509? We are being told that it could be the backplane in the chassis for slot 5 and 6 which is causing the issue, any pointers would be greatly appreciated.