PowerBook 180/180c daughtercard compatibility with motherboard

[croissantking]

I have a PowerBook 180c daughtercard that I want to use with a motherboard that came with a 180. I see that the m/bd has the same p/n so I assumed this would be fine. But on closer inspection, I see this:



Compare to 180c version found on the web:



Has anyone tried interchanging these?

 

[mg.man]

I have a PowerBook 180c daughtercard...

Hmm... I wonder where that came from?

FWIW, here's a shot of the motherboard from that 180c :



Not sure what to conclude tho.

 

[croissantking]

Hmm... I wonder where that came from?

No idea - it just turned up

FWIW, here's a shot of the motherboard from that 180c :

View attachment 70159

Not sure what to conclude tho.

I see you have the glue dots that indicate it’s for a 165c/180c:



The difference has to be marginal - maybe some option resistors set at the factory?

 

[imactheknife]

I have a spare 180c board if needed

 

[Powerbook27364]

This may not be relevant, but I have swapped the CPU cards on my 170/145B/140 all around and they have all worked with each others CPU cards and RAM. I have been running the 145B with a 170 CPU card for almost a year at this point without issue. I don't remember anything like that indicating a difference in boards however...

 

[3lectr1cPPC]

The 140/145/145B/170 all use the same motherboard so that's why that works. I don't know as much about the color vs. grayscale 2nd gen models, but if Apple called out that they were different, I'd expect them to actually be.

 

[croissantking]

I plucked up the courage to try and it works just fine.