NFG Games + GameSX

It's been years I wanted to create this page in the wiki. The original mod, as far as I know, showed up in the site Sega Kore (French language). All credits go to them/the guy who invented the fire.

As the guy at Sega Kore correctly noted, this mod is for compatibility: [quote]Important notes for English-speaking people interested in the following modification : the 32X switch is NOT a country switch, but a compatibility switch. It's NOT your 32X which is aimed by the country protection in games, but your Mega Drive/Genesis. If you want to play all 32X games in the world, you have to switch both your Mega Drive/Genesis (country & frequency) AND your 32X addon (for PAL/NTSC compatibility).[/quote]

This said, for having total compatibility over your system, you will need to mod both your Mega Drive/Genesis AND the 32X itself. Follow the other guide for Mega Drive/Genesis mod. This is because the 32X is a slave hardware that will mix its own AV processed data coming from MD. That said, a PAL 32X will expect the MD to output PAL 50Hz, wheter the NTSC will expect NTSC 60Hz.

= IMPORTANT = It should be noted that some games won't boot correctly even with the entire system modded.

The mod consist of just getting rid of a 0 Ohm resistor which locks the logic level on pin 17 for the Sega 315 - xxxx IC. This 0 Ohm is just a jumper (in case you're wondering what 0 Ohm is for). The resistor is labeled R42 in NTSC 32X and R43 in PAL 32X. All you have to do is to solder 2 wires out of the empty pads (corresponding to R42 place in PAL system, R43 in NTSC system) and wire them to a SPST/SPDT of your choice. Refer to the images from Sega Kore for now