How to use CPU from one computer for another?

I believe this has been asked before, but what the other guy was asking is how to do it over the internet. Which is basically called clustering.

Let me explain my scenario. I have an older eMachines not but 3 years old. It had a 2.16Ghz AMD processor. Recently I've found and salvaged a better computer. It's a no name "Systemax" with a decent motherboard and Intel Celeron D 2.5Ghz processor. So now my computer is able to play a lot of the games out there today, but still not all.

Is there a way to link both of these computers together to be able to use the main computer, but have the processing power of the other computer going towards the main computer? I hope I said that right. Thanks in advance for any suggestions.

You're still essentially talking about "clustering". It requires specialized software: the software must be smart enough to partition out specific tasks to be fed to other machines. That rules out the vast majority of common desktop applications, including games, office applications, web browsers, etc. So the short answer is, unfortunately, you probably can't do it, at least not the way you're thinking.

The short answer is no. New high end games are dependent on massive video processing. The Nvidia 8800 and 9000 family of video cards or high end ATi cards require a PCI Express video connector on the motherboard (two for SLI). Both of the CPU鈥檚 you listed would be considered as choke points for high end GPU鈥檚. Even if you set up a cluster one processor would not be on the same bus as the GPU.

It would work for crunching numbers but won鈥檛 help with GPU.