Converting Dish to Bell with yellow carded unit?

[Nascarfan2446]

I just got another PVR501 since I was unable to salvage my last one due to a lost trace when I was installing a lock, anyhow this PVR501 came with a yellow card and I would like to change it to a Bell Expressvu 5100 unit instead. I was wondering if its do-able since it has a yellow Dishnetwork card and not a blue one. If so is it easy to do? I know how to do the change on a blue careded unit but never attempted on a yellow carded unit.

Thanks!