Unknown hardware modification

[Retrojaner]

Hi Guys,

I bought a used DC because I needed a replacement motherboard. Now I have discovered a modification. What could that be?

[pcwzrd13]

That's a 4-wire BIOS mod.

http://www.mmmonkey.co.uk/dreamcast-4-w ... p-install/

[Retrojaner]

OK, thanks. The modification according to the link is not the same. But it tends to be similar.

[megavolt85]

BIOS on this mother board don't support MIL-CD
replace BIOS and remove mod chip

[Retrojaner]

I don't want to remove that. I can't get the original back because leg 28 is no longer connected to the board and my knowledge of soldering is not very high. I better buy another motherboard and sell it again ...

And I count 5 wires. Wire 1 is soldered somewhere else, the rest fits:

http://www.goldenshop.com.hk/AI-trad/Dr ... iremod.htm

This Mod-chip injects the correct country code during the boot sequence, so you are able to play IMPORT GAMES include Japan, USA and Europe titles. This Mod-chip are equipped with the latest codes.

[megavolt85]

hm, MPR-23588-X2 don't support MIL-CD and requery mod chip
i'm don't know why need mod chip with MPR-21931-x2

[Ian Micheal]

Might be one of the wierd ones I have seen from Brazil were they have mix match of parts

[Retrojaner]

The modchip makes sense because the console plays EU, US and JP games ... I tested it.