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Date:      Wed, 14 Oct 1998 17:26:51 -0400
From:      "Steve Friedrich" <SteveFriedrich@Hot-Shot.com>
To:        "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG>, "John" <freebsd-root@i-zone.demon.co.uk>
Cc:        "freebsd-hardware@FreeBSD.ORG" <freebsd-hardware@FreeBSD.ORG>
Subject:   Re: FreeBSD, maximum memory and 440TX chipset
Message-ID:  <199810142128.RAA04870@laker.net>

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On Wed, 14 Oct 1998 19:05:24 +0100, John wrote:

>In article <199810141555.IAA01000@dingo.cdrom.com>, Mike Smith
><mike@smith.net.au> writes
>>> Hello experts
>>> 
>>> (cc'd to freebsd-hardware where it is also relevant)
>>> 
>>> I have an Abit PX5 (440TX) motherboard. I have been advised that, as a
>>> win98 machine at least, adding more RAM than 64MB will see a performance
>>> hit in the order of 10% as the chipset cannot cache more than 64MB.
>>> 
>>> The cpu is an Intel P166MMX
>>> 
>>> The board can take up to 256MB
>>> 
>>> My questions:
>>> 
>>> Will I see this performance hit in FreeBSD? i.e. is this issue solely
>>> chipset specific? Does anyone else here run more than 64MB on a 440tx
>>> chipset?
>>
>>It's a feature of the 430TX and 430VX chipsets, and yes, once you start 
>>using memory over the 64M mark you will find it hurts FreeBSD too.
>>
>
>Argh. Thanks for clarifying. Can you tell me what other boards are out
>there that don't exhibit this (cough) feature, or if they do, at what
>RAM capacity do they exhibit it? (just wanting to avoid the same sort of
>mistake again).

You have to check each board you're looking at to see which "glue"
chipset it uses. Intel makes several, as well as a few other
manufacturers.

Take a look at: http://www.anandtech.com/chipset.html

Unix systems measure "uptime" in years, Winblows measures it in minutes.



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