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    PM7500 PSU capacitors

    I noticed my 7500's PSU is making very high-pitched noises while running certain loads. It's worse when I put in a replacement 150MHz 604 CPU card, and then especially bad on System 7. I'm guessing this is a sign of capacitor failure on the PSU, which given its age is to be expected. Does...
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    Dumb cooling question

    I decided to replace the thermal compound on a few of my PowerMacs lately. I noticed on one of them in particular (Digital Audio G4, DP/533) the heatsink is noticeably hotter (not too hot; it's warm to the touch but not uncomfortable). Since I have no way to tell if the processor itself is...
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    Centris 610 cache

    Did anyone ever make a cache card compatible with the Centris 610? Mine is upgraded with a full '040 and runs A/UX. I'd imagine a cache card of any sort would really improve A/UX performance. Thanks.
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