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Hypeertec memory

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Subject: Hypeertec memory
From: dmsmice@gmail.com (richard smice)
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by: richard smice - Tue, 15 Aug 2023 18:32 UTC

Re: Hypeertec memory

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From: ohland@charter.net (Louis Ohland)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: Hypeertec memory
Date: Tue, 15 Aug 2023 13:57:14 -0500
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by: Louis Ohland - Tue, 15 Aug 2023 18:57 UTC

https://www.ardent-tool.com/memory/Hypertec_MC32-16.html

But if you look at the auction, the "PGS PLCC" is silkscreened as
16C451. The area between the XICOR and the slot bracket looks to be a
DB47 ? my guess it's for a Single UART with Parallel Port And w/o FIFO?

Using a TI chip -

TL16C451 Consists of One TL16C450 Plus Centronix Printer Interface

Hypertech may have used something else for a 16C451.

Not sure of the set of ZIPs in lower left, maybe the fifth MB -OR- maybe
ECC functionality? Notice the loading of the ZIP banks.

richard smice wrote:
> https://www.ebay.com/itm/166276453130
>
> a little odd..
>

Re: Hypeertec memory

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Subject: Re: Hypeertec memory
From: dmsmice@gmail.com (richard smice)
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by: richard smice - Tue, 15 Aug 2023 19:05 UTC

On Tuesday, August 15, 2023 at 2:57:12 PM UTC-4, Louis Ohland wrote:
> https://www.ardent-tool.com/memory/Hypertec_MC32-16.html
>
> But if you look at the auction, the "PGS PLCC" is silkscreened as
> 16C451. The area between the XICOR and the slot bracket looks to be a
> DB47 ? my guess it's for a Single UART with Parallel Port And w/o FIFO?
>
> Using a TI chip -
>
> TL16C451 Consists of One TL16C450 Plus Centronix Printer Interface
>
> Hypertech may have used something else for a 16C451.
>
> Not sure of the set of ZIPs in lower left, maybe the fifth MB -OR- maybe
> ECC functionality? Notice the loading of the ZIP banks.
> richard smice wrote:
> > https://www.ebay.com/itm/166276453130
> >
> > a little odd..
> >
They do look like video memory zips... maybe some kind of enhancer...

Have you reconsidered a computer career?

computers / comp.sys.ibm.ps2.hardware / Hypeertec memory

Subject	Author
Hypeertec memory	richard smice
Re: Hypeertec memory	Louis Ohland
Re: Hypeertec memory	richard smice