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Apple Computing Products:
macOS - Desktop Hardware
The Macintosh revenge
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<blockquote data-quote="pm-r" data-source="post: 1827181" data-attributes="member: 175845"><p>When were the Macs last used??</p><p></p><p>But it seems that the SE is now operational, but I wonder what the state of the LC's PRAM battery would be as I seem to recall that a dead PRAM battery could prevent those and other models from booting.</p><p></p><p>If it hasn't been used for quite a while, try leaving it plugged in at least overnight and then try again the next day and see if it might boot. I believe there may be a slight charge applied to the PRAM battery when it is left plugged in, and it just might be enough to get it booted.</p><p></p><p></p><p>- Patrick</p><p>======</p></blockquote><p></p>
[QUOTE="pm-r, post: 1827181, member: 175845"] When were the Macs last used?? But it seems that the SE is now operational, but I wonder what the state of the LC's PRAM battery would be as I seem to recall that a dead PRAM battery could prevent those and other models from booting. If it hasn't been used for quite a while, try leaving it plugged in at least overnight and then try again the next day and see if it might boot. I believe there may be a slight charge applied to the PRAM battery when it is left plugged in, and it just might be enough to get it booted. - Patrick ====== [/QUOTE]
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Apple Computing Products:
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The Macintosh revenge
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