How do I change the serial number on an M610?

Hi,

Somehow one of our M610 blades has the same serial number as another of our M610s. As a result OME gets very confused and puts both DRACs under the same server. I need to get both servers updated via OME so I need OME to see them properly. What is the easiest method to change the serial number that the blade reports? I can see what it should be by the physical sticker on the blade.

Thanks.

Regards, Dominic