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Recent content by 4xtx

  1. 4

    Sharp PC-7100: no hard disk drive present

    Awesome - well done! That expansion chassis is very useful :) You can now load up Windows 3.0 if you so desire - I did a bunch of testing on 86box a few years back and found a bunch of real mode apps that should run on XT/CGA in real mode. https://www.vogons.org/viewtopic.php?f=61&t=80064
  2. 4

    Sharp PC-7100: no hard disk drive present

    thanks for this message, you saved me soldering a new chip on.. I was nervous about it :) Now I will put the V30 in a little frame and look at it instead.. haha with the floppy i am curious, did you make a molex splitter to run both original and new gotek drive? I am (very slowly) designing a 3d...
  3. 4

    Sharp PC-7100: no hard disk drive present

    apologies I didn't log back in for a while I simply used the hxc utility and created a 2.88mb DD image then drag/dropped files into it You can do anything except boot from it It seems if you create a custom/raw image over this amount it will initially work but start to fail as soon as you...
  4. 4

    Sharp PC-7100 - Lo-Tech XT IDE CF card upgrade

    8 years later I can answer this No - it does not. I have a PC-7100 which is supposed to have a hard-card and interface, it was removed by the previous owner and is simply ignored.
  5. 4

    Sharp PC-7100: no hard disk drive present

    The expansion chassis does not support any DMA mode operations which is required for hard disk operations such as the ones XTIDE would use. As per my note above I believe it has to do with the maturity of DOS at the time of the unit being created. Sharp wrote some propietary routines into their...
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