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Thread: MV-1C back up ram

  1. #1
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    MV-1C back up ram

    So my MV-1C suddenly boots with this error:

    773E14AA-15EA-439D-AC78-48A0AFD57860.jpeg

    Any idea what this means or what chip I need to replace, if any ?

  2. #2
    Edo Express Delivery Guy
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    It means the hardware test failed when testing backup ram. At address D00000 it wrote 0x0000 and when it read it back it got 0x0008. This is indicating the lower backup ram chip has an issue.

  3. #3
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    I had backup RAM error on my 6 Slot Board after replacing it, it works fine again.

  4. #4
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    Quote Originally Posted by ack View Post
    It means the hardware test failed when testing backup ram. At address D00000 it wrote 0x0000 and when it read it back it got 0x0008. This is indicating the lower backup ram chip has an issue.
    Thanks!
    I'll see if I can find a good source for the RAM chips ,so I can replace them.

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  6. #6
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    Thanks for the link!

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    Good luck with the repair! It shouldn’t be too difficult.

  8. #8
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    Quote Originally Posted by traveno View Post
    Good luck with the repair! It shouldn’t be too difficult.
    Thanks!

  9. #9
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    Received the RAM chips and installed them

    D66FA50A-0848-4B20-8BE8-BBBAFD27187A.jpeg

    029253EE-44FE-4AA7-916C-4FA3AAD2251A.jpeg



    and It seems to have worked ,I no longer get the error message, however I did receive this other error message the second time I powered the unit on

    0F068FF3-EFB0-4F4D-AFE5-A629881F4362.jpeg

    after clearing the backup RAM I haven’t received any more error messages and it seems to all be fine now.Any ideas what that illegal instruction error message means ? Or what could have caused it?
    Last edited by sota1j; 06-09-2020 at 12:25 PM.

  10. #10
    Genbu's Turtle Keeper
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    Your attachments don't work.

  11. #11
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    Quote Originally Posted by shadowkn55 View Post
    Your attachments don't work.
    Sorry, let me try again

    C9C127A2-8FD3-4AD6-8F7F-EB0516CB40B1.jpeg
    Last edited by sota1j; 06-09-2020 at 12:22 PM.

  12. #12
    Genbu's Turtle Keeper
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    It's probably the bios receiving an unexpected value due to the ram not being initialized properly upon installation.

  13. #13
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    did you tried to check if the cart is correctly inserted?

  14. #14
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    Yes, and I also made sure it was cleaned as well as the cartridge slot.Its a Neo SD Cart so it might just be finicky.

  15. #15
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    You've only received the error once? I'm hoping it's a fluke, as shadowkn55 said, your system may have been expecting old data on your new chips. It seems to have sorted itself out though.

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