From owner-freebsd-questions Mon Feb 8 02:09:53 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id CAA13136 for freebsd-questions-outgoing; Mon, 8 Feb 1999 02:09:53 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from mel.alcatel.fr (mel.alcatel.fr [212.208.74.132]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id CAA13128; Mon, 8 Feb 1999 02:09:48 -0800 (PST) (envelope-from Thierry.Herbelot@alcatel.fr) Received: from aifhs2.alcatel.fr (mailhub.alcatel.fr [155.132.180.80]) by mel.alcatel.fr (ALCANET/SMTP) with ESMTP id KAA06690; Mon, 8 Feb 1999 10:56:02 +0100 Received: from lune.telspace.alcatel.fr (lune.telspace.alcatel.fr [155.132.144.65]) by aifhs2.alcatel.fr (ALCANET/SMTP2) with ESMTP id KAA08260; Mon, 8 Feb 1999 10:53:25 +0100 (MET) Received: from telss1.telspace.alcatel.fr (telss1.telspace.alcatel.fr [155.132.51.4]) by lune.telspace.alcatel.fr (8.9.1a/8.9.1) with SMTP id KAA07327; Mon, 8 Feb 1999 10:36:19 +0100 (MET) Received: from telspace.alcatel.fr (nairobi.telspace.alcatel.fr) by telss1.telspace.alcatel.fr (4.1/SMI-4.1) id AA16666; Mon, 8 Feb 99 10:44:26 +0100 Message-Id: <36BEB31C.A38D1ADC@telspace.alcatel.fr> Date: Mon, 08 Feb 1999 10:49:16 +0100 From: HERBELOT Thierry Organization: Alcatel Telspace X-Mailer: Mozilla 4.5 [en] (X11; I; SunOS 5.5.1 sun4m) X-Accept-Language: en Mime-Version: 1.0 To: Karl Pielorz Cc: questions , hardware Subject: Re: Mixing P2 types for SMP (Was Re: Two P2) References: <002101be5118$831f15b0$a6d236c3@sysadmin.computerra.ru> <19990205192810.A28298@gv.edu.pl> <36BEA626.34CEF72F@telspace.alcatel.fr> <36BEAB84.A8317912@tdx.co.uk> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi, Well, I see there two points : - you have to use the same bus clock for both chips (66,6 or 60 MHz in the case of your PPro's) - I still don't know if I could mix two different clock multipliers (66x4 for a 266 Megger vs 66x5 for a 333 - which would use the same bus clock) Thks TfH Karl Pielorz wrote: > > HERBELOT Thierry wrote: > > > > Hello, > > > > I'm contemplating buying an SMP motherboard, now that SMP is a > > "mainstream" feature of FreeBSD-Stable. > > > > I was wondering if it is possible to mix P2-types on an SMP motherborad > > (I've got already a p2-266, and I would like to buy just an SMP > > motherboard (perhaps an ASUS P2L-DS) and the cheapest p2 I can buy > > today, which must be a p2-333) > > > > I remember that you had to be very strict when running SMP-Pentiums > > (sams mask level, same speed ....) Is it still the case for P2 ? > > AFAIK you'll just have to clock down to the lowest common denominator, and it > should be OK... I've seen P-Pro systems running with 1 x 180 an 1 x 200, but > you'd have to clock them both at 180... > > Be warned though that Intel are stoping people from fiddling the clocks on > their new P2 chips (i.e. overclocking) - and whilst your not trying to do this > if they disable multiplier pins etc. you might find yourself a victim of their > new policy... "older chips" from Intel should be amenable to higher heights (== overclocking - happy) there are reports where a 366-MHz Celeron could not POST at higher clocks ...:-( > > Regards, > > Karl To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message