From owner-freebsd-smp  Tue Apr 21 11:45:55 1998
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From: "John S. Dyson" <toor@dyson.iquest.net>
Message-Id: <199804211844.NAA07942@dyson.iquest.net>
Subject: Re: Off Topic(ish) - P-Pro Steppings...
In-Reply-To: <353CD7D1.ECA6F790@tdx.co.uk> from Karl Pielorz at "Apr 21, 98 06:30:57 pm"
To: kpielorz@tdx.co.uk (Karl Pielorz)
Date: Tue, 21 Apr 1998 13:44:20 -0500 (EST)
Cc: smp@FreeBSD.ORG
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> Hi All,
> 
> This is kinda-off topic... I've just aquired a second CPU for my P6DNF
> SuperMicro motherboard... It's allready got a P-Pro 200 (256) Stepping #9 in
> it, and the new one is a P-Pro 200 (256) Stepping 6.
> 
> The machine refuses to boot - I was just at the point of blaming FreeBSD,
> when I realised - it's not even getting to the boot loader... The moment the
> machine tries to access the Floppy, IDE or SCSI to boot it just locks
> dead...
> 
> Has anyone else got any experience mixing odd stepping CPU's? - According to
> intel they dont 'recomend' it, but say it should work (a bit like running a
> 256k P-Pro with a 512k P-Pro - not recomended, but apparently it does work
> :-)
> 
As a datapoint, but not helpful to you...  Both my CPU's are the same
stepping, but have different cache sizes.  (This is on my DNF.)

John

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