Date: Wed, 27 Nov 1996 15:17:15 -0700 From: Steve Passe <smp@csn.net> To: clintw@colorado.cirrus.com (Clint Wolff) Cc: smp@FreeBSD.org, Bruce.Albrecht@seag.fingerhut.com Subject: Re: P5 vs. P6 performance Message-ID: <199611272217.PAA17055@clem.systemsix.com> In-Reply-To: Your message of "Wed, 27 Nov 1996 14:18:40 MST." <9611272118.AA16802@longs.colorado.cirrus.com>
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Hi, > > > I'm looking at buying either a dual CPU Pentium motherboard and > > initially populating it with a single Pentium-200 MHz, and then adding the > > second Pentium-200 MHz a few months later, OR buying a single Pentium-Pro 200 > ... > Everyone I have talked to about buying a single pentium 200 and adding a > second one later has cautioned against it... Apparently, Intel recommends > only using dual processors with the same S-Spec number (I assume this is > the stepping)... Buying one now and one later doesn't give you any > way of insuring this... I know this is the "common knowledge", but I wonder if it is only historical, or still has some basis in fact. In the beginning Intel begat the P5 60/66 which didn't have an APIC. Then starting with the P5-90 SOME had working APICS, some evidently didn't, judgeing by the S-spec page on the Intel web page. Now I don't think Intel makes any P5 parts without working APICs. It's my belief that current P5/P6 parts needn't necessarily be of the same stepping, assumming same speed, etc. I have NO direct knowledge of this and would like to hear from anyone who does. -- Steve Passe | powered by smp@csn.net | FreeBSD
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