I have the same problem. I have adobe CS5.5.
When I export videofiles from adobe or media encoder, my computer only uses 6,7GB Ram and Max 30% processor speed.
I have set Ram by performance and I have set energy level in windows on High Performance and also the priorty to High in task manager.
Several months back I had an export with 90% ram usage, but I forgot how I did that..
Can anybody help me?
My computer has: 16GB DDR3 ram Windows 7 home premium I7-2600K NVIDIA GeForce GTX570 videocard