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jovianartifact
G4 MDD SfX PSU
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joevt
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Three motherboards over Plus' lifetime. What changed?
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Jens Larsen
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ExplorerZ
Macintosh LC randomly lost color
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cheesestraws
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zigzagjoe
30Video: New video board for SE/30 / IIsi / more?
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Hollie
Hollie
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shirsch
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VMSZealot
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adespoton
adespoton
indibil
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Byrd
Byrd
egrath
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bobcat
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zigzagjoe
zigzagjoe
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Latest profile posts

Powerbase
I am pleased to inform everyone, I have bought a M4 Mini. I have joined the current generation.
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Snial
Snial
M4 rocks!
Powerbase
Powerbase
Small enough to simply throw in a little case and shuttle back and forth from work to home. Definitely going to get one of those faux Mac Pro cases for it too.
croissantking
IMG_3167.jpeg
Good progress today fixing a 24X
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croissantking
croissantking
I found that one or more of the buffer chips was bad, but replaced them with wrong parts (too fast; overdriving inputs on other chips). Card worked for a while, but would crash upon resolution or bit depth change and sometimes displayed graphical corruption. After a while, the VCLK signal became unstable and I would lose sync, and now won't sync at all. Looking at VCLK output it wildly fluctuates between 0 and 8MHz.
finkmac
finkmac
how'd you identify that the buffers were bad?
croissantking
croissantking
@finkmac I just sort of guessed they might be given where they sit (between the Nubus interface and one of the ASICs) and it was easy to swap them.
3lectr1cPPC
New website update with the updated Macintosh Portal is out now! I also put up some new PowerBook Duo-related cap reference, and some more PowerBook developer notes and other stuff.

Home - MacDat

Hardware reference information on vintage macs, PC laptops, capacitor reference, and more!
www.macdat.net www.macdat.net
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