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Thread: Which Kaypro 2 version do I have?

  1. #1

    Default Which Kaypro 2 version do I have?

    I have a Kaypro 2 I'm trying to get up and running. From what I gather each version requires a different version of CP/M. Without knowing which Kaypro 2 I have I don't know which version of CP/M I need to order to fire up this bad boy.

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    IMG_20191124_164603.jpg
    IMG_20191124_164630.jpg

    My Kaypro 2 has half height floppy drives. So it is not the original Kaypro 2. Right? How can I tell if the drives are single or double sided?

  2. #2

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    if you open up the lid and give us the numbers on the ROM .. that way we can help you.

  3. #3

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    Quote Originally Posted by LS120 View Post
    if you open up the lid and give us the numbers on the ROM .. that way we can help you.
    Will do.

  4. #4

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    The ROM at U34 is marked "81-292". But that ROM seems to be used by multiple versions?

    Is there somewhere other than U34 I should check?
    IMG_20191125_070113.jpg

  5. #5

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    Based on the back panel, you have the newer mainboard. So, probably a 2X (2/84) model. Still, the thing that really determines the version of CP/M is the ROM. So look at the labeling on the chip at location U34. Based on the power-up display, you probably have 81-292 - which would pair with Kaypro CP/M 2.2G (or 2.2H, they say).
    - Doug

  6. #6
    Join Date
    Oct 2016
    Location
    Illinois, USA
    Posts
    442

    Default

    Ah, good ol' Kaypro and their chimera machines... Non-linear Systems? More like Non-linear Nomenclature!

  7. #7

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    I have also got a kaypro and i was on same situation. You need CPM 2.2G. Take a look to the manual:

    http://bitsavers.informatik.uni-stut...nual_Aug84.pdf

    You can download a bootdisk on following page:

    http://www.retroarchive.org/maslin/disks/kaypro/

    To write a bootdisk, you need MS-DOS PC with 5.25" drive. No matter DD or HD. My IBM 5170 with 1.2MB YD-380 drive works fine for example. And you need the programm TELEDISK.

    http://www.classiccmp.org/dunfield/i...6/teledisk.htm

    Then you can start with your Kaypro...


    Jan

  8. #8

    Default

    Thanks for the help. I looked up the floppy drives' model number and found they are single sided double density drives. I ordered a Kaypro 2-84 (2X) SSDD (k2-84ss) boot disk.

  9. #9
    Join Date
    Apr 2018
    Location
    Los Angeles, CA
    Posts
    788

    Default

    Quote Originally Posted by the Goat View Post
    Thanks for the help. I looked up the floppy drives' model number and found they are single sided double density drives. I ordered a Kaypro 2-84 (2X) SSDD (k2-84ss) boot disk.
    If you have a PC with a 5 1/4 floppy drive (and dos), you can actually make kaypro disks easily via a few methods. Here's one way:

    https://www.classic-computers.org.nz...images-cpm.htm
    -- Brian

    Systems: Amstad PCW 8256, Apple IIe/II+/GS/Mac+/Mac 512k, Atari 800/520STFM, Commodore 64/128/Amiga 3000/PET 4032/SX-64, IBM PS/1 2121-B82, Kaypro II, Osborne 1, Tandy 1000 SX, TI-99/4A, Timex Sinclair 1000, TRS-80 Color Computer 3/Model 4 GA

  10. #10

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    Are you sure the drives are single-sided? I thought all 2X (and beyond) shipped with double-sided drives. Of course, as previously commented, Kaypro is notoriously inconsistent. But, I thought the ROM was hard-coded for double-sided.
    - Doug

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