I asked Power Computing (eyetech said they couldnt tell me so I shold send my board to them and they would rip me off for a 5 minute job).
Basically:
revision 1D.4 with Budgie revision 1 requires E123C and E125C removing from motherboard
revision 1D.4 with Budgie revision 2 also requires removing one of the smt resistors and moving it somewhwere else.
I only have Budgie revision 1, so I didn't need to do the second bit, thats why I'm unsure what you have to do there. Give Power Computing an email, they'll tell you. :-)