System overload

Hi

Please can you help me.

I trying to solve problem with irrate dialogue box that keep on appearing. Stating System overload or audio engine -10008.

I have read some of the logic pro users forum have experience this same problem before, however i cannot find the solution.

I clear out all my internal drive. It was not that. I even went brought new internal drive, because if you do not have them matching the in gigabytes. It will start interface with the raid. http://howto.techworld.com/storage/3380/raiding-your-mac-pro/

Thank You