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Date:      Wed, 1 Sep 1999 20:23:27 -0400 (EDT)
From:      Chuck Robey <chuckr@picnic.mat.net>
To:        Gary McKinney <gmckinney@megabits.net>
Cc:        obrien@NUXI.com, alpha@FreeBSD.ORG
Subject:   Re: relative alpha speed
Message-ID:  <Pine.BSF.4.10.9909012021330.366-100000@picnic.mat.net>
In-Reply-To: <002601bef4d8$24abba60$1e00000a@gary2.megabits.net>

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On Wed, 1 Sep 1999, Gary McKinney wrote:

> According to my PC164 motherboard manual (if you consider a thin book a
> manual <grin>) the PC164 can be populated with half the memory slots filled
> and a jumper set to indicate the data path to the RAM is 128-bits wide.
> With all eight slots filled (must be the SAME SIZE SIMMs) and the jumper set
> in the "other" configuration the data path is 256-bits wide (which I think
> is the configuration of the LX motherboard ([and the EB164 motherboard as
> well - have one of them too with the docs...])... I would opt to run all
> eight slots as the Memory Manager can then keep the CPU running full speed
> (no wait state insertions because the memory data path is too narrow)...

I'm going to guess here and say you meant the PC164 only, and not the
PC164SX, right?  I can't see any such connector called out in the
PC164SX's manual.

We all have to keep in mind here that the PC164, PC164SX, and PC164LX
are all different animals.

---------------------------+-----------------------------------------------
Chuck Robey                | Interests include any kind of voice or data 
chuckr@picnic.mat.net      | communications topic, C programming, and Unix.
213 Lakeside Drive Apt T-1 |
Greenbelt, MD 20770        | picnic.mat.net: FreeBSD/i386
(301) 220-2114             | jaunt.mat.net : FreeBSD/Alpha
---------------------------+-----------------------------------------------



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