I am a newbie with computer terminology so these questions might not be asked correctly. Hopefully it will be good enough to decipher to answer my questions. I have a perfect working Xserve that I don't want to get rid of installed into a custom rack built by XRackPro by GizMac. My question is if I connect two or more Xserve together will it mean my CPU power has increase that would allow for task to be accomplished much more faster? I am going to be doing Bitcoin mining and I am deciding if I should buy all new computers designed specifically for Bitcoin mining, accompanied with compatible fans, and rack; this will cost me $6000 or more. My second choice is to buy more Xserves, accompanied with compatible fans and, memory that would cost me around $2000 -$2500. If I buy more than one Xserve, should they all have the same CPU rating?