前提条件：Sega Dreamcast Expansion Bay Replacement

1. Sega Dreamcast Controller Port Replacement
2. Sega Dreamcast Top Cover Replacement
3. Replacing Sega Dreamcast Power Block (Power Supply)
4. Sega Dreamcast Logic Board Replacement
5. Sega Dreamcast GD-ROM Replacement
6. Sega Dreamcast Power Supply Replacement
7. Sega Dreamcast Fan Replacement

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