If the swapping the HDs won't work, what is the best way to clone PE1655MC's HDs to PE1650's ones over the network? Is there any special Linux distribution that can be booted off the network (PXE) for it?
Might not be the *best* way but this is one way of doing it.. https://www.redhat.com/archives/taroon-list/2005-April/msg00099.html