Date: Tue, 19 Jan 1999 14:41:27 +0100 From: Martin Cracauer <cracauer@cons.org> To: Greg Pavelcak <gpavelcak@philos.umass.edu>, freebsd-chat@FreeBSD.ORG Subject: Re: Overclocking Celeron 300A Message-ID: <19990119144126.B905@cons.org> In-Reply-To: <19990118234635.A7597@oitunix.oit.umass.edu>; from Greg Pavelcak on Mon, Jan 18, 1999 at 11:46:35PM -0500 References: <19990118234635.A7597@oitunix.oit.umass.edu>
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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 <cracauer@cons.org> 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
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