Re: Athlon 64 complains of frequency mismatch

[Marc Singer <elf@buici.com>]

On Mon, Jun 21, 2004 at 11:02:06PM -0700, paul.devriendt@amd.com wrote:
> > > Partly. It shows the values received by the powernow-k8 driver are
> > > _completely_ bogus. A standard questions: have you tried a 
> > BIOS update?
> > 
> > I looked for one.  I downloaded a BIOS, though I'm not sure it is
> > newer than the one installed.  The release notes make no mention of
> > powernow or acpi.
> 
> > I did fetch it.  There are no entries for _PSS or even PSS.
> 
> The frequency/voltage values are different for different processor
> models. The way that this is supposed to work is that the BIOS
> provides a table of the frequency/voltage data that the driver 
> uses, thus making the driver independent of the platform.
> 
> Obviously if the BIOS does not do this, then the driver has no
> data. I do have a version of the driver that uses hardcoded
> values for my own testing purposes, but the source has to be
> edited to put in the correct values for your particular processor.
> 
> I did intend to make this data module parameters, but have not
> had the time to do so yet. You can find the correct data values
> for your processor from the "Power and Thermal" pdfs available 
> on www.amd.com. Let me know if you want a copy of this hardcoded
> driver (or it is easy to modify the driver ourself).

Perhaps I'm missing something.  If AMD advertizes Cool&Quiet as does
this vendor, MSI, then there has to be someplace where this data is
given to Windows.  Are we talking about the vendor providing a Windows
driver without including the necessary information in the BIOS?