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  • Auction: ULTRA RARE VINTAGE NEW CACHE MEMORY MODULE FOR 486DX SX VINTAG

    From Louis Ohland@21:1/5 to All on Tue Dec 28 12:47:45 2021
    https://www.ebay.com/itm/324896616161

    BIN / MAO

    Not sure what system this was for.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From IBMMuseum@21:1/5 to All on Tue Dec 28 13:44:29 2021
    https://www.ebay.com/itm/324896616161

    BIN / MAO

    Not sure what system this was for.

    This is the same pinout as the Intel "Turbocache" like the Reply 60/65/80 Turboboard would use...

    --- SoupGate-Win32 v1.05
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  • From Louis Ohland@21:1/5 to IBMMuseum on Tue Dec 28 15:59:35 2021
    Wasn't there a ZEOS or Zenith as well?

    On 12/28/2021 15:44, IBMMuseum wrote:
    https://www.ebay.com/itm/324896616161

    BIN / MAO

    Not sure what system this was for.

    This is the same pinout as the Intel "Turbocache" like the Reply 60/65/80 Turboboard would use...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From IBMMuseum@21:1/5 to All on Tue Dec 28 15:11:42 2021
    Not sure what system this was for.
    Wasn't there a ZEOS or Zenith as well?

    The Intel "Professional Workstation" (an EISA 486 system) has a socket for it too...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Louis Ohland@21:1/5 to IBMMuseum on Tue Dec 28 16:30:24 2021
    https://ia801604.us.archive.org/9/items/bitsavers_inteldataBocessorHardwareReferenceManual_34104475/1990_i486_Microprocessor_Hardware_Reference_Manual.pdf

    Page 209 is the section on cache

    On 12/28/2021 15:44, IBMMuseum wrote:
    https://www.ebay.com/itm/324896616161

    BIN / MAO

    Not sure what system this was for.

    This is the same pinout as the Intel "Turbocache" like the Reply 60/65/80 Turboboard would use...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From lharris428@gmail.com@21:1/5 to IBMMuseum on Tue Dec 28 23:24:37 2021
    On Tuesday, December 28, 2021 at 6:11:43 PM UTC-5, IBMMuseum wrote:
    Not sure what system this was for.
    Wasn't there a ZEOS or Zenith as well?
    The Intel "Professional Workstation" (an EISA 486 system) has a socket for it too...

    So I bought one of these quite a few weeks ago and in the TurboBoard it throws NMI's or the board fails to post when a 83Mhz POD is installed. Working on getting a stock 486 from David also thinking of buying a DX4 100 Overdrive off of eBay just to have
    and fool around with.

    This is the page I use: https://ardent-tool.com/NCR/3350.html

    "From "wault" on the Vintage Computer Forum
    This board was manufactured by Intel and IDT and used over about a two year period on a variety of 486 systems using a 33Mhz bus in the early nineties. The board contains a total of 4 rows of 28 pins.
    There are 64K and 128K versions and here are some of the part numbers: IDT7MB6091
    IDT7MB6098
    IDT7MB6098SA33K
    I82485MA-33 (64K)
    I82485MB-33 (128K)
    Machines that I know of using this item:

    Multibest Industrial MB4861DX
    Epson ExpressStation 486
    Packard Bell 22/23 motherboard
    NCR 3350 and 3434
    Reply 80 Planar
    Intel L486
    DECpc 433
    Morse Technologies KP 486EDX
    Zenith ZDS
    Zeos 486/33"

    --- SoupGate-Win32 v1.05
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