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Getting into the holiday spirit but still stuck at work? A cute new macOS called Festivitas can help you decorate your Mac computer screen with twinkling, holiday lights that are strung up from your menu bar and illuminate your dock. This whimsical holiday treat was dreamed up by software developer Simon B. Støvring, the maker […]

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"Am I the first person to discover this?" is a tricky question when it comes to classic Macs, some of the most pored-over devices on the planet. But there's a lot to suggest that user paul.gaastra, on the 68kMLA vintage Mac forum, has been right for more than a decade: One of the capacitors on the Apple mid-'90s Mac LC III was installed backward due to faulty silkscreen printing on the board.

It seems unlikely that Apple will issue a factory recall for the LC III—or the related LC III+, or Performa models 450, 460, 466, or 467 with the same board design. The "pizza box" models, sold from 1993–1996, came with a standard 90-day warranty, and most of them probably ran without issue. It's when people try to fix up these boards and replace the capacitors, in what is generally a good practice (re-capping), that they run into trouble.

The Macintosh LC III, forerunner to a bunch of computers with a single misaligned capacitor. Credit: Akbkuku / Wikimedia Commons

Doug Brown took part in the original 2013 forum discussion, and has seen it pop up elsewhere. Now, having "bought a Performa 450 complete with its original leaky capacitors," he can double-check Apple's board layout 30 years later and detail it all in a blog post (seen originally at the Adafruit blog). He confirms what a bunch of multimeter-wielding types long suspected: Apple put the plus where the minus should be.

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