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How to Download and Use nullDC 104 r136 BIOS.7z for Dreamcast Emulation
nullDC 104 r136 BIOS.7z is a file that contains the BIOS files for the Dreamcast emulator nullDC 1.0.4 r136, which is one of the best emulators for playing Dreamcast games on Windows. The BIOS files are essential for running the emulator and loading the game roms.
In this article, we will show you how to download and use nullDC 104 r136 BIOS.7z for Dreamcast emulation.
Step 1: Download nullDC 104 r136 BIOS.7z
You can download nullDC 104 r136 BIOS.7z from various websites that offer emulators and roms, such as RetroEmulators.com, CoolROM.com, or Softpedia.com. The file size is about 895 KB and it contains two files: dc_boot.bin and dc_flash.bin.
Make sure you download the file from a trusted source and scan it with your antivirus software before opening it.
Step 2: Extract nullDC 104 r136 BIOS.7z
After downloading nullDC 104 r136 BIOS.7z, you need to extract it using a program that can handle 7z files, such as 7-Zip or WinRAR. You can extract it to any folder you want, but we recommend creating a folder named “nullDC” in your C drive and extracting it there.
You should see two files in the extracted folder: dc_boot.bin and dc_flash.bin. These are the BIOS files that you need for running the emulator.
Step 3: Download nullDC 1.0.4 r136 Emulator

Next, you need to download the nullDC 1.0.4 r136 emulator, which is the program that will run the Dreamcast games on your PC. You can download it from the same websites that offer nullDC 104 r136 BIOS.7z, such as RetroEmulators.com, CoolROM.com, or Softpedia.com. The file size is about 895 KB and it contains one file: nullDC_NAOMI_104_r136.exe.
Again, make sure you download the file from a trusted source and scan it with your antivirus software before opening it.
Step 4: Extract nullDC_NAOMI_104_r136.exe
After downloading nullDC_NAOMI_104_r136.exe, you need to extract it using a program that can handle exe files, such as 7-Zip or WinRAR. You can extract it to the same folder where you extracted nullDC 104 r136 BIOS.7z, which is C:\nullDC in our example.
You should see several files and folders in the extracted folder, such as plugins, data, cfg, etc. These are the files and folders that you need for running the emulator.
Step 5: Run nullDC_NAOMI_104_r136.exe
Now you are ready to run the emulator and play some Dreamcast games on your PC. To do that, double-click on nullDC_NAOMI
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