DOS ain't dead

Old Dell Wyse 5010 (Dx0D) thin client for use with DOS (Users)

posted by RayeR , CZ, 01.03.2026, 08:07

Luckily I found the pinout of ITE IT8721F SuperIO chip and located unused MCLK & MDAT pins that was tied via pull-ups to VCC. Even there are little testpoints that can be soldered more easily than tiny SIO pins. So I wired that 2 lines to additional PS/2 connector and got mouse working :)
As usual the SIO has autodetection of KBD or mouse is attached so I can plug in KBD too. There are also KBD PS/2 lines but no room on backpanel for dual PS/2 connector so I added only a single one, glued it on the PCB and drilled a hole in backpanel...
http://rayer.g6.cz/hardware/wyse5010/it8721f.jpg

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DOS gives me freedom to unlimited HW access.

Complete thread:

• Old Dell Wyse 5010 (Dx0D) thin client for use with DOS - RayeR, 23.02.2026, 17:47 (Users)
  • Old Dell Wyse 5010 (Dx0D) thin client for use with DOS - Laaca, 23.02.2026, 21:33
    • Old Dell Wyse 5010 (Dx0D) thin client for use with DOS - RayeR, 24.02.2026, 00:26
      • Old Dell Wyse 5010 (Dx0D) thin client for use with DOS - Zyzzle, 24.02.2026, 05:25
        • Old Dell Wyse 5010 (Dx0D) thin client for use with DOS - RayeR, 24.02.2026, 07:24
          • Old Dell Wyse 5010 (Dx0D) thin client for use with DOS - Zyzzle, 24.02.2026, 12:06
            • Old Dell Wyse 5010 (Dx0D) thin client for use with DOS - RayeR, 01.03.2026, 08:07
  • Old Dell Wyse 5010 (Dx0D) thin client for use with DOS - Zyzzle, 23.02.2026, 23:48