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SubjectRe: A new Athlon 'bug'.
On Mon, Nov 25, 2002 at 10:34:47PM +0100, Pavel Machek wrote:

> > Very recent Athlons (Model 8 stepping 1 and above) (XPs/MPs and mobiles)
> > have an interesting problem. Certain bits in the CLK_CTL register need
> > to be programmed differently to those in earlier models. The problem arises
> > when people plug these new CPUs into boards running BIOSes that are unaware
> > of this fact.
> What happens when bit is programed wrongly?

The documentation I have says nothing other than "...platforms are more
robust..." with the fix. It's purely a reliability thing, but as it's
fiddling with the CPU clock, it's possible that it may *slightly*
affect performance too.

Dave

--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs
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