I recently got a quad G5 from a family member. The computer boots just fine, but the case looks like it's been used for live fire practice. I also have a dual 1.8 G5 that doesn't work (I think the processor has become slightly unseated...it runs fine for about 10 minutes before crashing, but runs fine if placed on it's side [door facing up, processors down]) but has a case in very good shape. I'd like to swap the internals from the G5 quad into the dual 1.8. Is this possible to do without modifications?