Hi John. The Asus A7V600-X looks fine. I'm using an ASUS A7V8X-X and Ive been very pleased with it. Changing the processor over is quite straightforward, but you will have to remove the heatsink first. This will take quite a lot of pressure to depress the clips, so you need to be very firm but also very careful. Similarly for refitting to the new motherboard. You must also remove every trace of heatsink compound from the interface surface of the processor - that is the centre rectangular bit, and also from the surface of the heatsink. Even a small bit of compound can stop the surfaces mating together - I know because I burnt out a processor once by getting it wrong. I found a cloth moistened with meths got rid of the final traces of compound. You will then need new compound for refitting the heatsink.