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If anyone wants to risk it with this selector, or do further testing hit me up. You can have it for cost + shipping.

Bump. Appears support for this has been abandoned. Did anyone get this selector working on the multi aside from people with multis from early batches? Hopefully @twistedsymphony picks up support for this multi with his selector also.

The only game I have had freeze is Dolphin Blue. JAMMA with dip switch set appropriately. Issue is generally either right at Attract / Boot or on the first level. But I have had it (annoyingly) occur in much later stages. My motherboard serial numbers are: 2003D100067694* 2003D10000101L*...

I’ll have to open my motherboards but they’re both 2003 serial numbers. I have an original cart and multi and spent time soak testing the motherboards already. Just have to open them up. The definite working motherboard was from @xodaraP — so I’ll follow up with him. Good to know I’m not the...

No. This was fixed very early days of the UltraSIMMs being released.

Anyone got any intel on what the checks on boot are doing before I go shotgunning RAM on the board? Ping @CoolFox

Congrats mate! I know how hard you’ve been working for this. The UV logo sounds nice with the red/green coloring. But keen to see some mockups when you’re ready!

Bumo!

Put me down for a couple if you’re selling, and if there’s any other Aussies who need can combine shipping. Or I could build some.

Looks great. I love the title screens for the games. Also love that it’s auto resetting too!

A bit of foam and some cutting should make those Namcot cases really functional.

@fuzzbuddy - is it the same guy? Did you try ping him on shmups forum? That sucks dude :(

Impressive repair log! I'm ghost bumping this from the dead after 7 years for some assistance. Just got a super clean, minty (sold as not working) Jackie Chan PCB. It was sold as "Fists of Fire", however after placing the ROMs onto my working PCB, it just seems to be "Kung Fu Master"...

Those CPS-3 motherboards are great donors for UltraSIMMs!!! You just need a repro cart and you’re good to go!

Cup holder.

@twistedsymphony - Thank you for breaking that down! Makes much more sense to me than reading that data sheet trying to figure out concepts. The game plays fine to me... so I'm not going to think about it too much for the time being and just assume it's all good and that the Op Amp is doing...

ELI5 pls?

Original: @nem: Left & Right: 148 Push & Pull: 128 @MickyMac Left & Right: 122 Push & Pull: 134 Gundam Stick, no Op Amp, no resistors but + 3D printed restrictor: @nnap: Left & Right: 126 Push & Pull: 169 Gundam Stick, Op Amp, 2k Resistors + new restrictor: @FrAshi Left & Right: 81 Push &...

Does your ATX PSU have adequate 3.3v? Worth reading this post for some info about using more modern ATX power supplies: https://www.arcade-projects.com/threads/out-of-spec-atx-power-supplies-when-under-load-jvs.2131/