No C-States on T7400

[Ben Branch]

Thanks -- I find this discussion enlightening. FWIW, when I boot my
BIOS says "C1E BIOS Supported". If I follow the discussion, this means
that I may be getting C-state transitions but they are invisible to the
Linux kernel.

I'm trying to track down disk activity right now. I've implemented several
of the Tips, including the hdparm to spin-down, but my desktop seems to
generate too much disk activity to either spin-down or to spin-down long
enough to be meaningful. A never-ending quest!

Best Regards,
Ben