WTD: S100 Static RAM card

Mike Stein mhs.stein at gmail.com
Thu Mar 26 16:32:11 CDT 2015

FWIW I've never had any problems with Cromemco 
64KZ-II DRAM cards.


----- Original Message ----- 
From: "Philip Lord" <philip at neoncluster.com>
To: <publicmail at jwsss.com>; "General Discussion: 
On-Topic and Off-Topic Posts" 
<cctalk at classiccmp.org>
Sent: Thursday, March 26, 2015 5:19 PM
Subject: Re: WTD: S100 Static RAM card

Hi Jim, thanks for the info.
Always good to know what people think are good 
cards, and what aren’t.


> On Mar 27, 2015, at 10:13 AM, Jim Stephens 
> <jws at jwsss.com> wrote:
> On 3/26/2015 1:34 PM, Philip Lord wrote:
>> Hi all,
>> I’ve been struggling getting a 64k Dynamic RAM 
>> card back up and working in my IMSAI 8080. In 
>> fact I’m giving up on the DRAM card in this 
>> system and have decided to start looking for a 
>> SRAM card that can get the IMSAI up to 56k.
>> In terms if SRAM cards, I presently have:
>> 2 x Problem solver RAM16 cards - both seem to 
>> be working.
>> 2 x 8K RAM cards - both seem to be working.
>> Less cards generating heat, and putting stress 
>> on the old power supply is obviously best, so I’d 
>> be looking for either:
>> - 1 x 16k SRAM card (for a total of 4 RAM cards 
>> (3 x 16k + 1 x 8k) in my system). A PSS RAM16 
>> would be preferred for sake of consistency, but 
>> obviously not crucial.
>> - 1 x 32k SRAM card (for a total of 3 RAM cards 
>> (1 x 32k, 1 x 16k + 1 x 8k) in my system)
>> - 1 x 64k SRAM card that can have the last 8k 
>> bank turned off
>> I would love to hear from anyone with one of 
>> the above cards who would be willing to pass it 
>> on.
>> Much thanks for your time.
>> Best regards
>> Philip
> I do not have any to pass on, but in the day, 
> you couldn't do better than IMS 16k's  I also 
> had a Tarbell CPU with 256k of Dram, and that 
> was the only dynamic ram I ever had in an S100 
> system.
> Also if you can find Compupro, I suspect it is 
> as likely to be perfect as the IMS boards are.
> Thanks
> Jim

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