BIOS modification

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The Dreamcast's BIOS chip can be replaced (or a secondary chip added) to remove region checks, A/V connectivity compatibility checks, and add new features.

Examples of custom BIOS versions include japanese-cake's BIOS hacks v1.031 and v1.032 and cpasjuste's DreamBoot.

  • v0 consoles (5V): Use MX29F1610.
  • v1 and v2 consoles (3.3V): Use MX29LV160TMC or MX29L3211 (32 megabit, double BIOS).

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