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Date: Wed, 19 Oct 2005 15:57:26 -0700
From: Kurt Buff <kurt.buff@gmail.com>
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To: Charles Swiger <cswiger@mac.com>
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Cc: Doug Poland <doug@polands.org>, questions@freebsd.org
Subject: Re: Installing 2nd CPU on SMP board
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Charles Swiger wrote:
> On Oct 19, 2005, at 4:44 PM, Doug Poland wrote:
> 
>> I've inherited an SMP machine for which I've no documentation and  don't
>> have convenient access to the hardware itself.  The computer has a
>> single Xeon 2.8GHz CPU and I'd like to purchase another CPU.  Question
>> is, can I simply match another Xeon of the same speed and expect it to
>> work?
> 
> 
> You want to get the same speed, FSB, and family number of Xeon, and  it
> is preferable to get the same stepping number if possible.
> 
>> If I need more info, will dmesg(8) tell me what I need to know?
> 
> 
> If you understand how to translate the dmesg display into processor 
> steppings, sure.
> 
> See pages 16-17 of:
> 
> http://download.intel.com/design/Xeon/specupdt/24967849.pdf


Ya know, if you have the money, it's probably just faster/easier to buy
two new matching CPUs that are known to work with the board, strip out
the old one and put the new ones in.

Just a (lazy) thought...

Kurt