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Date:      Tue, 21 Sep 2004 10:32:10 +0200
From:      Bruno Ducrot <ducrot@poupinou.org>
To:        Francois Tigeot <ftigeot@wolfpond.org>
Cc:        freebsd-amd64@freebsd.org
Subject:   Re: bios.h question
Message-ID:  <20040921083210.GS16132@poupinou.org>
In-Reply-To: <20040920181137.GA1004@aoi.wolfpond.org>
References:  <20040914150419.GA7191@aoi.wolfpond.org> <200409141543.13318.peter@wemm.org> <20040915063512.GA10104@aoi.wolfpond.org> <200409170907.18458.peter@wemm.org> <20040917190850.GA69926@aoi.wolfpond.org> <20040920170013.GQ16132@poupinou.org> <20040920181137.GA1004@aoi.wolfpond.org>

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Hi,

On Mon, Sep 20, 2004 at 08:11:37PM +0200, Francois Tigeot wrote:
> I'm curious: did you find any recent documentation ? All documents on
> Powernow! I could gather on AMD site were for the K6 family.

Actually it is well documented (for the k7 one, it's another story
though).

http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_739_7203,00.html

Especially:

"BIOS and Kernel Developer's Guide for AMD Athlon 64 and AMD Opteron
Processors", #26094
look especially at 9.5.5.2 which describe how to make a transition
for example.

"AMD Athlon 64 Processor Power and Thermal Data Sheet", #30430
which contains (amongst other things) all the processors supporting
frequency and voltage scalings.

and of course you have to look at the errata doc.

Cheers,

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.



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