Demul Mpr- 21931. Ic501 Page

If you have a BIOS file named 1_01d_01.bin , it is actually the same file as mpr-21931.ic501 . You can simply rename it and add it to your dc.zip archive to satisfy the emulator's requirements.

For more technical details on Dreamcast hardware, you can check the component lists on or read about hardware modifications on the ConsoleMods Wiki Are you trying to configure the DEmul emulator , or are you performing a physical hardware repair on a Dreamcast console? Emulating Dreamcast?? - LaunchBox Community Forums demul mpr- 21931. ic501

| BIOS Version | MPR Part Number | Region | Motherboard Revision | MIL-CD Compatible | | :--- | :--- | :--- | :--- | :--- | | | MPR-21068 | Japan | VA0 | Yes | | v1.01d | MPR-21931 / MPR-21933 | Japan, U.S., PAL | VA1 | Yes | | v1.022 | MPR-23588 | Japan, U.S. | VA2.1 | No | If you have a BIOS file named 1_01d_01

is the 2MB Mask ROM chip used in North American and European Sega Dreamcast consoles (VA1 motherboards). It contains the system's boot code and legal screen. : It is always labeled as on the motherboard. : You may also see related versions like MPR-21931-X1 MPR-21931-X2 depending on the specific region and manufacturing date. Replacement Emulating Dreamcast

Click , and trace the path to your newly created roms folder containing the dc.zip archive. Click Apply , then OK .

If you run into any while setting up your graphics or controllers, let me know what the pop-up text says so we can solve it right away! Share public link

Move your unmodified directly into that roms folder. Note: Do not extract dc.zip unless your specific build version requires loose files; DEmul prefers reading the zipped archive directly. 3. Correctly Map Plugin and Path Settings in DEmul