bri3d
a year ago
For background on some of the cool stuff here:
This isn’t a new PCB with Wii components transplanted, it’s something even weirder - OMEGA refers to a strategy for physically cutting the original Wii PCB in a way that allows it to still work. Then, relocated features are applied using flex PCBs soldered in just the right places. And, it’s all a big community thing - each board is designed by a few different people and it all comes together into a ridiculously small Wii. The “Thundervolt” flex overlay provides all of the necessary VReg tasks for battery power. The AVEflex relocates the factory video encoder. NANDflex provides storage. And finally a custom dock/riser board provides I/O and charging. The use of flex boards over the OEM motherboard is a really wild and interesting approach that seems to work really well - while there are custom Wii motherboards like Vegas, it’s easier to build the flex-enhanced style setups and since they stack so well, they end up smaller anyway.
xattt
a year ago
I didn’t think that plain-old flex cable rerouting was even possible, given potential issues with timing with high-speed signals. Yet somehow, this still works.
ZiiS
a year ago
There are 243Mhz signals from the PowerPC to the SoC and 486Mhz signals to the RAM. OMEGA leaves these unchanged (basically dictating its final size). The remaining signals are slow enough by modern standards that flex cable works.