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Date: Fri, 3 Oct 1997 07:36:25 -0400 (EDT)
From: "Alex.Boisvert" <boia01@castor.GEL.USherb.CA>
To: Glenn Johnson <gljohns@bellsouth.net>
Cc: freebsd-hardware@FreeBSD.ORG
Subject: Re: AMD and Cyrix chips
In-Reply-To: <199710030354.WAA02394@gforce.bellsouth.net>
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On Thu, 2 Oct 1997, Glenn Johnson wrote:

> I am planning on replacing my AMD K5-75 chip with either an AMD K6-166 or a 
> Cyrix 6x86MX P200 running at 166 MHz. Does anyone have any recommendations on 
> which one I should upgrade to? I know there were some problems with the K6 
> that seem to have been resolved. Are there any issues with the Cyrix chip? 

I run a few systems here with a IBM/Cyrix 6x86L P200+.  The Cyrix P200+, 
when run at 2x75 MHz is *very* fast but, with a data bus speed of 75 MHz 
it's very picky about which memory/cards work well.  You'll want to have 
SDRAM at this speed and maybe avoid early Adaptec 2940 PCI controllers 
since they have problems at this speed.

As you said, you can set the speed to 2x66 MHz which will give you good 
performance still, and avoid speed problems altogether.  I have 
overclocked a CPU here at 3x60 MHz and it's very fast on computation (but 
i/o is not comparable to 75 MHz).

The boards we use are Matsonic MS-5120 (see www.eurone.com).

Don't have any experience with AMD.

Regards,
Alex Boisvert

---
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