Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 19 Oct 2005 16:12:32 -0700
From:      Glenn Dawson <glenn@antimatter.net>
To:        kurt.buff@gmail.com, Charles Swiger <cswiger@mac.com>
Cc:        Doug Poland <doug@polands.org>, questions@freebsd.org
Subject:   Re: Installing 2nd CPU on SMP board
Message-ID:  <6.2.3.4.2.20051019161158.05ff9160@cobalt.antimatter.net>
In-Reply-To: <4356CF56.2090106@gmail.com>
References:  <20051019204428.GB46703@polands.org> <7BF2FC41-83C1-4E8C-8201-846783762B7B@mac.com> <4356CF56.2090106@gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
At 03:57 PM 10/19/2005, Kurt Buff wrote:
>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.

It's better to match the sSpec numbers...those include the stepping, 
and not all processors of the same stepping have the same sSpec.

-Glenn

> >
> > 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
>_______________________________________________
>freebsd-questions@freebsd.org mailing list
>http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?6.2.3.4.2.20051019161158.05ff9160>