Dreamcast GDEMU, BSOD / random hangs / not booting up (FIXED!)

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zgoro
noob
Posts: 4

Dreamcast GDEMU, BSOD / random hangs / not booting up (FIXED!)

Post#1 » Fri Jun 12, 2020 3:39 am

Hi gurus,

I bought a PAL dreamcast without optical drive and installed a GDEMU clone on it, changed the fan and added the resistors on PSU. I use a microSD card (16GB raspberry pi3b card) inside an SD adapter.

Changing adapters and different microSD card yield to the same result:

Usually the first time it does boot up fine, entering the games and playing them. However, especially when I restart dreamcast iIt happens either one of these cases:

1) black screen until a stuck dreamcast logo already in central position (no animation)

2) enters GDEMU but goes black screen after starting the entry menu

3) stuck when loading at SEGA logo



Any help would be really appreciated!
Last edited by zgoro on Sun Jul 12, 2020 12:48 pm, edited 1 time in total.

zgoro
noob
Posts: 4

Re: Dreamcast GDEMU how to identify the problem?

Post#2 » Sun Jul 12, 2020 12:46 pm

Just a quick update, my dreamcast had an old 4 wire modchip, by removing that interferences disappeared and now have awesome fun with GDEMU + Noctua fan mod + custom bios!

So for any future references if you experience the same issues I had, an old 4-wires modchip could be the issue.
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