Date: Mon, 08 Feb 1999 10:49:16 +0100 From: HERBELOT Thierry <Thierry.Herbelot@alcatel.fr> To: Karl Pielorz <kpielorz@tdx.co.uk> Cc: questions <questions@FreeBSD.ORG>, hardware <hardware@FreeBSD.ORG> Subject: Re: Mixing P2 types for SMP (Was Re: Two P2) Message-ID: <36BEB31C.A38D1ADC@telspace.alcatel.fr> References: <002101be5118$831f15b0$a6d236c3@sysadmin.computerra.ru> <19990205192810.A28298@gv.edu.pl> <36BEA626.34CEF72F@telspace.alcatel.fr> <36BEAB84.A8317912@tdx.co.uk>
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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-hardware" in the body of the message
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