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  • Re: Update: Olivetti P500 Page

    From Louis Ohland@21:1/5 to Tomas Slavotinek on Fri Sep 9 10:08:22 2022
    https://ardent-tool.com/datasheets/WD_PVGA1A.pdf

    page 6 physical.

    3.3 Memory Interface

    "In addition, external hardware can be added to allow higher display resolutions by trading off the number of bits/pixel."

    No idea, bet the additional stuff has to be designed in at board-level,
    and I'm not seeing anything like "direct color"


    I dunno.

    Tomas Slavotinek wrote:
    Had some time to finish the outline (based on UMMR's photo), so the page
    is up now:
    https://ardent-tool.com/Olivetti/P500.html

    (I will do the ALR MPS planar from his website as well.)

    If anyone has this machine please let me know. It would be nice to get
    info on the PSU, connector pinouts, etc.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Tomas Slavotinek@21:1/5 to All on Fri Sep 9 16:37:09 2022
    Had some time to finish the outline (based on UMMR's photo), so the page
    is up now:
    https://ardent-tool.com/Olivetti/P500.html

    (I will do the ALR MPS planar from his website as well.)

    If anyone has this machine please let me know. It would be nice to get
    info on the PSU, connector pinouts, etc.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Tomas Slavotinek@21:1/5 to Louis Ohland on Fri Sep 9 17:33:42 2022
    Yeah, 8 bpp/256 colors max. Additional memory paired with a faster
    RAMDAC can give you higher resolutions, but there is no sensible way
    around the 8-bit limitation...

    But it's still more capable than the stock IBM VGA. And it should be
    faster too if one implements the 16 bit wide host iface.

    On 09.09.2022 17:08, Louis Ohland wrote:
    https://ardent-tool.com/datasheets/WD_PVGA1A.pdf

    page 6 physical.

    3.3 Memory Interface

    "In addition, external hardware can be added to allow higher display resolutions by trading off the number of bits/pixel."

    No idea, bet the additional stuff has to be designed in at board-level,
    and I'm not seeing anything like "direct color"


    I dunno.

    Tomas Slavotinek wrote:
    Had some time to finish the outline (based on UMMR's photo), so the
    page is up now:
    https://ardent-tool.com/Olivetti/P500.html

    (I will do the ALR MPS planar from his website as well.)

    If anyone has this machine please let me know. It would be nice to get
    info on the PSU, connector pinouts, etc

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From richard smice@21:1/5 to Tomas Slavotinek on Fri Sep 9 10:46:05 2022
    On Friday, September 9, 2022 at 11:33:45 AM UTC-4, Tomas Slavotinek wrote:
    Yeah, 8 bpp/256 colors max. Additional memory paired with a faster
    RAMDAC can give you higher resolutions, but there is no sensible way
    around the 8-bit limitation...

    But it's still more capable than the stock IBM VGA. And it should be
    faster too if one implements the 16 bit wide host iface.
    On 09.09.2022 17:08, Louis Ohland wrote:
    https://ardent-tool.com/datasheets/WD_PVGA1A.pdf

    page 6 physical.

    3.3 Memory Interface

    "In addition, external hardware can be added to allow higher display resolutions by trading off the number of bits/pixel."

    No idea, bet the additional stuff has to be designed in at board-level, and I'm not seeing anything like "direct color"


    I dunno.

    Tomas Slavotinek wrote:
    Had some time to finish the outline (based on UMMR's photo), so the
    page is up now:
    https://ardent-tool.com/Olivetti/P500.html

    (I will do the ALR MPS planar from his website as well.)

    If anyone has this machine please let me know. It would be nice to get
    info on the PSU, connector pinouts, etc
    https://books.google.com/books?id=eTAEAAAAMBAJ&pg=RA1-PA70&lpg=RA1-PA70&dq=everex+mca+computer&source=bl&ots=Y5-FzmGfU5&sig=ACfU3U0RTiuiKoKltIhMh6Z0GqgjXG2lcQ&hl=en&sa=X&ved=2ahUKEwiLraXWnoj6AhXhElkFHV0FDasQ6AF6BAgkEAM#v=onepage&q=everex%20mca%20computer&
    f=false


    Mitac and everex made a few mca computers as well
    I think that I have a old everex 386 somewhere in one of my sheds.. Grid made one as well
    It may be just a tandy 5000, But I have some mca cpu boards that say grid on them..

    another odd ball is I have a compaq system with a reply upgrade board in them.

    and some pc enterprises upgrades for the all in one ps/2's and pc junior..

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Tomas Slavotinek@21:1/5 to richard smice on Sat Sep 10 13:17:29 2022
    On 09.09.2022 19:46, richard smice wrote:
    Mitac and everex made a few mca computers as well
    I think that I have a old everex 386 somewhere in one of my sheds.. Grid made one as well
    It may be just a tandy 5000, But I have some mca cpu boards that say grid on them..

    another odd ball is I have a compaq system with a reply upgrade board in them.

    and some pc enterprises upgrades for the all in one ps/2's and pc junior..

    Oh wow, I heard of the Reply upgrades for Compaqs, but never ever saw
    one. We only have the support files:
    https://ardent-tool.com/Reply/Files.html
    What generation of the DeskPro is it for? The M series?

    And speaking of Mitac... The "ALR MPS" board from UMMR's website was not
    made by ALR and it's certainly not from any of their Multi Processor
    Systems (MPS). It's actually from Mitac MPS3000F aka Memorex Telex 7270
    aka Olivetti P700 aka who knows what else. According to PCmag the
    original manufacturer of the board/case is Mitac. But the Olivetti P700 machines have a product sticker from Memorex. Confusing...

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