I think you might be confused. I'm fairly sure the 9600 core is what it its, not a cut-down version of something else. So there would be no pipelines to enable. Even if there were, you would be looking at an EXTREME, kill-your-gfx-card kinda mod to do it.
I've not heard of anything like this for the 9600 either. Some 9500s were moddable to 9700s I think but they were replaced for being to powerful for the price they retailed at.
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