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Beeping on and off and not booting up #14

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ktoczyski opened this issue Sep 2, 2024 · 0 comments
Open

Beeping on and off and not booting up #14

ktoczyski opened this issue Sep 2, 2024 · 0 comments

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@ktoczyski
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Hello,

I built this project but I have a problem to run it up. Only beeping on and off, flashing BUS diode (red/green) and not booting up.

What I checked:

  1. Voltages - ok
  2. CPU (three different}
  3. CLK on FE2010A pin 19 (is 4.77MHz)
  4. CLK on CPU pin 19 (is 4.77MHz)
  5. OSC on FE2010A pin 20 (is 14.3MHz)
  6. CRYSTAL OUT on FE2010A pin 21 (is 28.6MHz)
  7. OSC on ISA SLOT pin 30 (is 14.3MHz)
  8. CLK on ISA SLOT pin 20 (is 4.77MHz)
  9. POST CODE CARD - hang on code 3b (Is there a list of codes for XT_BIOS somewhere?)

Do you have any idea or suggestion where the problem might be?

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