Date: Mon, 16 Sep 1996 22:00:41 -0700 From: "Michael L. VanLoon -- HeadCandy.com" <michaelv@MindBender.serv.net> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: hardware@freebsd.org Subject: Re: RAM timings for Triton chipsets? Message-ID: <199609170500.WAA21788@MindBender.serv.net> In-Reply-To: Your message of Tue, 17 Sep 96 12:58:18 %2B0930. <199609170328.MAA28840@genesis.atrad.adelaide.edu.au>
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>Just a quick question for anyone familiar with the jargon that Award
>use in their older Triton BIOSsen.
[...]
>I thought I'd try changing a couple of the memory timing options from
>"x2222" to "x4444", there being no explanation of what these mean.
>And lo and behold, the system _seems_ much faster. It could just be that
>it's just been rebooted after being up for months, but at the same time
>I'm wondering if the changes could be significant.
It must be, because you just made it much slower... :-)
x2222 and x4444 mean how many cycles it takes to access memory for
each cycle of a burst read or write. The x means that the first
access is longer (typically something like 6 cycles). After the first
access, it can burst at a word for every 2 bus cycles (or as the case
is now, for ever 4 bus cycles).
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Michael L. VanLoon michaelv@MindBender.serv.net
--< Free your mind and your machine -- NetBSD free un*x >--
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