1. Forum
  2. Usenet
  3. COMP.SYS.IBM.PS2.HARDWARE

  • Re: Hypeertec memory

    From Louis Ohland@21:1/5 to richard smice on Tue Aug 15 13:57:14 2023
    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..


    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From richard smice@21:1/5 to Louis Ohland on Tue Aug 15 12:05:52 2023
    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...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From richard smice@21:1/5 to All on Tue Aug 15 11:32:23 2023
    https://www.ebay.com/itm/166276453130

    a little odd..

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)