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Thread: IBM PC AT 5170 BIOS versions

  1. #21

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    IBM PC 5170 BIOS.jpg

    I've got junk of IBM PC 5170 type 1 motherboard.

    This is very early Type 1 release of IBM PC 5170 BIOS.

    Part No. : 6181024 (16KB) + 6181025 (16KB) = 6181028 (32KB) , 6181026 (16KB) + 6181027 (16KB) = 6181029 (32KB)

    https://mega.nz/#!ngtklAZB!cUw4fTZlJ...ZZp8tnSY9MH9mM

  2. #22
    Join Date
    Jan 2014
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    Melbourne, Australia
    Posts
    557

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    Wow! Can we see the entire board please??
    Bobby.

  3. #23
    Join Date
    May 2006
    Location
    Melbourne, Australia
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    6,293

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    Quote Originally Posted by fs5500 View Post
    I've got junk of IBM PC 5170 type 1 motherboard.
    This is very early Type 1 release of IBM PC 5170 BIOS.
    Part No. : 6181024 (16KB) + 6181025 (16KB) = 6181028 (32KB) , 6181026 (16KB) + 6181027 (16KB) = 6181029 (32KB)
    Good to see these chips, listed in figure 9 of the document at [here], eventually 'surface'.
    Because of the 16 KB sized ROM's, we expect shunt block U131 to be in the '27128' position (per [here]).
    Also expected, are Intel made 8259A interrupt controller chips.
    Now that we have a photo of the ROM's, I will later add details to [here].

  4. #24

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    @bobba84

    Sure, here it is.
















    @modem7

    Thanks very much.
    Last edited by fs5500; December 5th, 2018 at 05:33 AM.

  5. #25
    Join Date
    Jan 2014
    Location
    Melbourne, Australia
    Posts
    557

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    Thank you!
    Bobby.

  6. #26

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    Silly question - could the unpopulated 16 bit connector positions be populated to give the AT 8 16 bit slots instead of just six?

    tnx.

    g.
    Proud owner of 80-0007
    http://www.f15sim.com - The only one of its kind.

  7. #27

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    Quote Originally Posted by geneb View Post
    Silly question - could the unpopulated 16 bit connector positions be populated to give the AT 8 16 bit slots instead of just six?
    You could do that. But it means you cannot use 8-bits cards any more that only fit in a 8-bits slot like the original IBM CGA video card.
    With kind regards / met vriendelijke groet, Ruud Baltissen

    www.baltissen.org

  8. #28

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    @gene . @Ruud

    I recommend to discuss about non related BIOS topic on another thread.

  9. #29
    Join Date
    Dec 2007
    Location
    Texas Hill Country
    Posts
    113

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    If I want to make an EPROM image, would I just read the image in an EPROM programmer, or is there another way to do it? I haven't checked my system to see what version BIOS I have (5170), but it is a tempest AT (if anyone remembers tempest). TONS of capacitors on the MFM controller and CGA card (which has additional filtering and the RCA outputs removed). Also, EVERY cable, including the power supply, is shielded. The ROMs themselves say Golden Bow up on top. One of the admins on a local vintage group I'm on really wants me to get some ROM dumps.
    IBM Computers: 5150 (16-64K, 64-256K), 5160, 5161 expansion unit (several of these), 5170 (regular and Tempest) PS/2 Mods 30, 40SX, 50Z, 55SX, 60, 70, 77 (Lacuna & Bermuda), 80, 85, 90 XP.
    Vintage ThinkPads: 300, 360C/CE/CSE, 365X, 701C/CS, 720C, 730TE (tablet), 750C/P (color and tablet models), 755C/CE/CD/CDV/CX, 760ED, 770, 560/E, 600E/X.
    Vintage UNIX workstations: 2/120, 3/75, 3/60, SS 2/5/20, Ultra 2 Enterprise, HP 715/100, several RS/6000s ............And a bunch of other stuff

  10. #30

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    Quote Originally Posted by pkhoury View Post
    If I want to make an EPROM image, would I just read the image in an EPROM programmer, or is there another way to do it?
    Try this:

    https://www.pcorner.com/list/UTILITY/GETROM.ZIP/INFO/

    or this:

    https://www.msx.org/news/software/en/getrom-11
    PM me if you're looking for 3" or 5" floppy disks. EMail For everything else, Take Another Step

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