Re: Dual Athlon CPU detection..

From: Willy Tarreau
Date: Thu Mar 18 2004 - 17:07:13 EST


On Thu, Mar 18, 2004 at 01:52:34PM -0700, Mark wrote:
> On March 18, 2004 12:47 pm, Thomas Davis <tadavis@xxxxxxx> wrote:
> >
> > Is this a bad CPU, or a kernel bug?
>
> AFAIK this information comes from the Bios. Some bioses don't verify that the
> second CPU as being an MP. It's been known for some time. Some people were
> using this to run 1 MP and 1 XP to save money on processors. However if you
> were to update your bios, it might start checking both for being MPs.
> Original bioses didn't even check for the first processor at one time but AMD
> complained and the bioses were modified.

I can confirm this. I have two XP 1800 on my A7M266D, and the earlier bioses
reported different CPUs. Now after the bios upgrade, it simply reports that
they both are real MPs ! I even removed the fans once to be sure !

Cheers,
Willy

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