From owner-freebsd-chat Tue Jan 19 12:14:05 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA02217 for freebsd-chat-outgoing; Tue, 19 Jan 1999 12:14:05 -0800 (PST) (envelope-from owner-freebsd-chat@FreeBSD.ORG) Received: from super-g.inch.com (super-g.com [207.240.140.161]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id MAA02206 for ; Tue, 19 Jan 1999 12:14:03 -0800 (PST) (envelope-from spork@super-g.com) Received: from localhost (localhost [127.0.0.1]) by super-g.inch.com (8.8.8/8.8.5) with SMTP id PAA29528; Tue, 19 Jan 1999 15:13:20 -0500 (EST) Date: Tue, 19 Jan 1999 15:13:20 -0500 (EST) From: spork X-Sender: spork@super-g.inch.com To: Martin Cracauer cc: Greg Pavelcak , freebsd-chat@FreeBSD.ORG Subject: Re: Overclocking Celeron 300A In-Reply-To: <19990119144126.B905@cons.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org I noticed tomshardware.com has no "how to overclock your 300A". I did note that there are some notes about Intel putting a stop to overclocking by locking the chip at one speed. Anyone have the lowdown on this? I need a new machine at home, and I'm seeing the Celeron and the AMD K6-2 coming really close in price. If it's possible to reliably clock the celeron, that seems like a good deal... Anyone able to clarify the rumors? Thanks, Charles --- Charles Sprickman spork@super-g.com On Tue, 19 Jan 1999, Martin Cracauer wrote: > I overclocked a 300A to various speed and various voltages between 2.0 > and 2.2 Volts in an Asus P2B. > > On 450MHz (2.2 Volts) it runs Windows, Games etc. but it does not > survive a FreeBSD make world, the hardest test on my plate. Most > overclocking advocates do not test that hard, and this frequency might > be stable enough for operating system that crash more often than the > overclocked hardware, but it just isn't 100% reliable. > > Having said this, at 375MHz/2.0 (0.83 MHz on Busx4.5) volts I could do > whatever I want and it is stable. I truely beleive that these Chips > are designed for higher frequencies than 300 MHz. > > I can also confirm that a Celeron with 128 MB cache at full speed is > the same speed as a PII with 512KB cache half speed at the same > frequency for tests like games, FreeBSD compilation etc. > > The real problem with the Celerons is that I can't get any descent > material to mount it on my P2B. > > Also, all the people who got PPROs 200 in 1996 overclocked them, but > most began to fail after one year of continuous operation, so prepare > to buy a new chip someday. On the other hand, it is easily imagineable > that these Celeron 300 are really higher clockable chips, given that > Intel produces similar chips with up to 450 MHz, while a PPRO 200 was > top of list at that time. > > Martin > -- > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% > Martin Cracauer http://www.cons.org/cracauer/ > BSD User Group Hamburg, Germany http://www.bsdhh.org/ > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-chat" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message