(Topic ID: 156739)

Is there a NVRAM for Gottlieb system 3

By southofi-10

5 years ago



Topic Stats

  • 7 posts
  • 6 Pinsiders participating
  • Latest reply 5 years ago by ForceFlow
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    #1 5 years ago

    Been searching but haven't found a nvram battery eliminator for the gottlieb system 3 games.I have a streetfighter I'd like to update to a nvram.
    Any help always appreciated

    #3 5 years ago

    What kind of RAM does the sys3 have? 5101?

    #4 5 years ago
    Quoted from mr2xbass:

    What kind of RAM does the sys3 have? 5101?

    Either a 6116 or a 6264, depending on jumper settings.
    All of them can be jumpered to use a 6264.
    --
    Chris Hibler - CARGPB #31
    http://ChrisHiblerPinball.com/contact/
    http://webpages.charter.net/chibler/Pinball/index.htm
    http://www.PinWiki.com - The Place to go for Pinball Repair Info

    #5 5 years ago

    I believe Gottlieb System 3 MPus use CE2 @ pin 26 of the 6264 RAM which is not used/not connected on the FM16(w)08. If it does, this would complicate using the FM1608 device as NVRAM in that MPU.

    You would probably have to setup the NVRAM like what is done for gottlieb s80 5101 ram using dual CE. Invert the 2nd chip select and combine it with the first one.

    This is on my list to figure out, but i haven't looked into it yet. Not having any system 3 games setup isn't helping.

    #6 5 years ago

    You need to do modify a system 3 board to make Ramtron based NVRAM working at these boards. If you like I can provide you a Simtek based NVRAM adapter which is the better choice for Gottlieb system 3. All you need to do for thtat is remove the Original SRAM and Dallas battery monitor chip and add 2 jumper wires. Send me a PM if you are interested. You need to have good solder skills to work at Gottlieb system 3 boards!

    Marco

    #7 5 years ago

    This thread was posted a while back. It seemed like it was a little involved to get NVRAM installed on the board.

    https://pinside.com/pinball/forum/topic/nvram-gottlieb-system-3-success

    In short, there doesn't appear to be an easy plug 'n play option quite yet.

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