• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

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    -12V short to GND on my Quadra 840AV logic board

    I need some help regarding my Quadra 840AV. I have got this Macintosh stock. The behavior was at power on: Very dim Power LED, black screen and only FANs were spinning. 2 days later I have powered it on again and the power LED wasn't powering on any more but FANs were spinning. After longer...
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