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Ok thanks. I’m sure it’s a broken trace somewhere. I have found and fixed several already. Just hard to find now.

Another question, Anyone know wether this is more likely a bad RAM chip or more likely a broken trace? I am combing through the board looking for bad traces or via's but so far no luck. Would be nice to know if it is getting to the self test then that means that all the connections to the RAM...

Same here but mine is 00000003 000000FF

Hey all, Working on another Macintosh Portable board I got on the cheap but... Someone freakin destroyed it trying to do a cap kit. It also has/had several broken traces from leaky cap corrosion. I've fixed replaced all the melted and or broken components / lifted pads, and all the broken...

Wow, ok I learned something today... Whenever I saw that connector my brain said "Nubus".

Looks just like Nubus!

oh wow, I looked at a board and thought the connector was a Nubus.

The DeclROM is not working then for sure. I’ve also installed the rocket software. I wonder what the lowest cost and closest to a IIcx model Mac there is that I could use as a bench testing device. Was thinking an LC or LC II maybe. It has one Nubus slot on it. Yet another Mac board to find...

Ahh. Thanks. Good info. One thing I saw was a description from someone who sold one on eBay saying “For sale is a Radius Rocket Accelerator. I dont have a way to fully test the card with drivers, but TattleTech shows the card installed so I am very confident the card will work fine.” So...

The best (and addicting) part of repairing this stuff is the “it freaking works” moment. 😆

Hi, does anyone know if a Nubus card should show activity on the address/data lines if just power is applied to the card from a non working / running Mac logic board? I have a Radius Rocket card that’s not working and I was going to try to troubleshoot it but I can’t tell if Nubus cards need a...

So now that one board is repaired I am back at it with the original board that this thread was started on and I have a new discovery. I received a ROMinator today and when I put that in the board it came to life, although a sick life. With known good SIMMS I get one style of chime when I hit...

But when i put either card in my non working mac to troubleshoot (theres only power on the NuBus) neither card show activity other than a clock on the oscillator. trying to figure out how to troubleshoot the board(s)

Right and the accompanying software ScreenPlay sees the card too on launch (and then crashes). Thats the spigot card. The rocket is not showing up at all...

Btw. Any info on troubleshooting Nubus cards? It looks like if I just put a card in and power on a machine they don’t run there’s only a clock. Even the semi working video spigot (it shows up on a running machine in tattletech) doesn’t show activity on the roms or ram on a non running logic...

Ahh I beat you to the edit 😆 already bookmarked the page for download…

Top link?

eBay is getting out of control. Yellow Quadra 650’s on there for $300 plus $150 shipping 🤦‍♂️ The last one (re capped) sold for $600 plus $72 shipping!

No it’s the one from apple. “Apple Personal Diagnostics”… Oh and I ran MacEKG and Techtool on it

😂