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Thread: VLSI 82C840 486 chipset: anyone seen a working UMB driver?

  1. #11

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    Just load 'EMM386.exe NOEMS' and you'll get exactly what you want, ο φίλος μου.
    PM me if you're looking for 3" or 5" floppy disks. EMail For everything else, Take Another Step

  2. #12
    Join Date
    Feb 2012
    Location
    Ioannina , Greece
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    192

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    Quote Originally Posted by Stone View Post
    Just load 'EMM386.exe NOEMS' and you'll get exactly what you want, ο φίλος μου.
    This is actually what IBM did , I spend some 30mins restoring the whole HDD with the Spring '93 files , I guess it was the only way all that fancy bloatware *cough* could work on the system LOL
    I thought there could be something in the PS1TOOLS directory but nope... only APM stuff mainly.

  3. #13
    Join Date
    Dec 2008
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    United States of America
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    74

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    Sorry to threadjack, but I don't suppose you have a way of dumping the BIOS for that motherboard, do you?

  4. #14
    Join Date
    Feb 2012
    Location
    Ioannina , Greece
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    192

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    I did dump the bios and it's identical to the one linked here: http://oldcomputer.info/keep/c/museum/pc/PS1_2168 "eprom-upd-19930920.7z"
    My board is a 65G7662 , soldered 486sx25, overdrive socket, 72pin simm sockets, onboard CL5424/512kb and support for 128/256kb of cache.
    Trying to repair yours?

  5. #15
    Join Date
    Dec 2008
    Location
    United States of America
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    74

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    Trying to revive a dead board whose eprom I overwrote like an ignoramus. I forgot to save the old image. Thanks for the link.

    Edit: I doubt it would work, I somehow missed this was an IBM machine the first time. :/
    Last edited by Moogle!; August 11th, 2019 at 07:24 AM.

  6. #16
    Join Date
    Feb 2012
    Location
    Ioannina , Greece
    Posts
    192

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    yeah it won't... maybe if you strip the VGA bios at the beging , most likely the system bios is the last 64kbytes of data

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