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Date:      Wed, 30 Oct 1996 09:17:07 -0600 (CST)
From:      Joe Greco <jgreco@brasil.moneng.mei.com>
To:        rv@groa.uct.ac.za (Russell Vincent)
Cc:        jgreco@brasil.moneng.mei.com, current@freebsd.org
Subject:   Re: Request to add this to FAQ re: swap space
Message-ID:  <199610301517.JAA25891@brasil.moneng.mei.com>
In-Reply-To: <m0vITf2-0004vzC@groa.uct.ac.za> from "Russell Vincent" at Oct 30, 96 07:57:55 am

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> Joe Greco wrote (about the ASUS P/E-P55T2P4D):
> > I can't get anything more than 192MB to work reliably on this board
> > (6 x 32MB SIMM modules) - unless we go with the mega mondo $$$$ 64MB
> > SIMM's..  and even those I have doubts about.  We put the 4 that we 
> > have on a P/I-P55T2P4 board and it refused to work until we relaxed 
> > the RAM timing to 70ns.  Gives me a sick feeling.
> 
> I am running 5 P55T2P4D boards with 256MB (4x64MB) and they
> are running fine (all RAM is being used by the OS). The memory
> is '1st grade RAM' (whatever that may be, although definately more
> expensive) and was specicially imported for these machines.

Yes, we did that too, and it works fine -- in the P/E-P55T2P4D boards.

However, at about $2000 per 64MB SIMM module, this is an expensive
solution.

And, as noted, those same SIMM modules in the P/I-P55T2P4 boards would
not work at all until we relaxed the timing to 70ns.

It ended up being cheaper to buy more machines each with 192MB of 32MB 
"cheap" EDO RAM  (64MB x 4 SIMMs = $8000, 1 extra MB + 12 x 32MB 
SIMM's = $4000, and you end up with more memory on average too)

... JG



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