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Date: Sun, 05 Feb 1995 21:22:18 -0500 (EST)
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From: cjbox@VAX1.ACS.JMU.EDU (Chris Box)
Subject: Re: DSP Ram upgrade info
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>
>I was messing with my computer the other day (changing things around, as
>usual) when I notced two very familiar looking chips on my Aria card.
>As I examined the chips more closely, I realized where I had seen them
>before- they were the same chips I used when I was upgrading my system's
>cache ram.  I wandered off and looked through my junk box, and
>eventually found a couple of other cache srams laying around.  I plugged
>them in, and lo and behold, I now had 16 kwords of ram instead of 8.
>So, it looks like the memory needed to do a memory upgrade on an Aria is
>just plain old 20 nanosecond cache ram.  I used 2 32k by 8 chips to get
>my increase from 8 to 16 kwords, so now my question is, just how much
>memory is a kword, and what do I have to add to get 40 kwords instead of
>16?  I assume maybe tossing my 32k srams in favor of 4 64k srams?  Any
>guesses?  ON a related note, now that I have a little more ram (and hope
>to figure out how to get even more soon) how do I take advanage of the
>dsp applications?  I downloaded the .dsp files from the FTP site, but I
>don't know what to do with them now that I have them.  Will they even
>work with 16 kwords?
>
>Many thanks for any help,
>Chris
>
>

Well, I had assumed it would be something like that, so.. there are 8 bytes
in a word, so logically 40 kwords of RAM would be 40*8 or 320k

320k minus the 64k already on the board (8*8) leaves you with 256k, so my
assumption would be that you need 2 128k SRAM chips.

This also makes sense since you added 64k, thereby doubling the memory,
going from 8kwords to 16, and from 64k to 128k.

Chris

