I have tried searching the forum so sorry if this has already been asked. I have a QS with a single 867 MHz processor. I have access to a QS with a dual 1 GHz processor. Is it possible to switch just the processors and have both systems work OK? Both systems have a fair amount of other things installed / mounted and also the 867 case is in much better condition. Thus the interest in just switching the processors. Looking at the OWC site it appears that they list the same processor upgrades for both the single 867 and the dual 1 GHz so that would seem to confirm. Looking at an upgrade PDF it appears that the processors are fairly easy to remove and install. (With all of the normal disclaimers of exercising care and caution).