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

[zgoro]

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

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Any help would be really appreciated!

[zgoro]

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.