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Thread: 486 Bios has died

  1. #1
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    486 Bios has died

    I've got here a 486 DX4/100 running on an Arstoria AS496 motherboard. Unfortunately when I turn on the PC, i am greeted with a BIOS Checksum error, and it asks for a system disk. It is an award BIOS and i have tried to put in a DOS bootdisk with awdflash on it, and have also tried several other boot disks. Does anyone know what the "system disk" it is asking for could be? I've found that I can buy a new pre programmed BIOS chip for $25US, but I'm not willing to spend that much on a 486. There is more info on the mobo here
    Cheers
    CP

  2. #2
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    Re:486 Bios has died

    A system disk is typically a boot disk of some sort - dos, win9x dos, lilo, raw image, etc. or perhaps even a single floppy distro/os.

  3. #3
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    Re:486 Bios has died

    I've tried all of those. I tried a windows boot disk, an MS-DOS 6.22 boot disk, a linux boot disk and nothing worked. I have one more plan, but forgot to compile floppy support into my kernel, : so I'll be doing that tomorrow
    Cheers
    CP

  4. #4
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    Re:486 Bios has died

    Suggestion- Check the CMOS battery on the motherboard. It may be all that's wrong. They usually cost around $3.00

    BTW - I have several 486 MOBOs that support your CPU. They are gathering dust...

  5. #5
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    Re:486 Bios has died

    I tried removing the batttery, and it doesn't seem to make any difference. Another Mobo is looking like the best bet, as I have memory, HD's and everything else I need. The problem is finding one in NZ, because shipping a mobo here would probably cost more than its worth. Thanks for the offer though
    CP

  6. #6
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    Re:486 Bios has died

    You removed the battery - but did you install a new one? If it is dead, the hardware will need to be setup each boot - and removing the battery would not have any effect - it would be the same as a dead battery...

    Just a thought...

    Wonder what a battery costs to send to NZ? <G>

    Good luck!

  7. #7
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    Re:486 Bios has died

    Well it seems that the bios is actually corrupted, but I'm doing as you suggested and actually getting a new battery. My gf works at a watch place and can get me one for free, so I'll be trying it tomorrow.
    Cheers
    CP

  8. #8
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    Re:486 Bios has died

    [quote author=CP link=board=3;threadid=8280;start=0#msg76433 date=1073441326]
    Cheers
    CP
    [/quote]

    And Roebuck! <G>

    Incidentally - there are utility to wipe the CMOS completely, or, you can reload them if they are flashable. WIMs BIOS page is a good resource. I think its www.wims.be or .de or similar, but you can always find it via Google.

    Good luck - I'll keep my fingers crossed!

  9. #9
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    Re:486 Bios has died

    Well, did it work? (Waiting to hear good news!)

  10. #10

    Re:486 Bios has died

    Your chip corrupted. It's asking for the flash boot disk (which in most cases doesn't even work). Go here and order a new chip. You can even have them program you BIOS in for you before they ship it. A lot cheaper than buying a new mobo (Then again, it is a 486).

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