[ltp] lower CPU clock without battery in X61s

[Tino Keitel]

On Thu, Jun 26, 2008 at 07:34:40 +0200, Yves-Alexis Perez wrote:
> On mer, 2008-06-25 at 20:44 +0200, Tino Keitel wrote:
> > my X61s only uses 1,2 GHz if I remove the battery, even with the
> > performance cpufreq governor. With the battery inserted, it uses 1,6
> > GHz. Is there something I can do to get the maximum CPU clock even
> > with
> > the battery removed?
> 
> Yes, this is known, and supposedly it's to protect the thinkpad. It may
> be a feature of EIST (Enhanced Speedstep) but I couldn't find any spec
> on this on the net.

The funny thing is that it is not always the case. I just had the
chance to use the full CPU clock without the battery inserted.

Regards,
Tino