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Apple Computing Products:
macOS - Notebook Hardware
Need Help With Clamshells....... Reward
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<blockquote data-quote="Rob" data-source="post: 235500"><p>Just looked it up, this is excatly what you have to do:</p><p>1. Change the amount of RAM installed be removing or adding a chip. Don't remove ALL the memory, as you can't boot, of course.</p><p>2. reboot holding the Command-Option-P-R key combination. Hold the keys until you've heard at least two successive startup sounds.</p><p>3. The Open firmware password will now absolutely be disabled, and you can shut down and return your powerbook to its normal RAM setup.</p><p>Boot to your OS X installer CD, and at the first screen, go the the Installer menu, and click on Change Startup Disk, and change to your normal boot drive.</p><p>4. That should do it, and you can exit from the installer, unless you need to do that, too.</p><p>or</p><p>1) Install or remove a stick of ram.</p><p>2) Zap the Pram 3 times in a row.</p><p>3) your done.</p><p></p><p>As I don't have a "real" Mac, I can not try this, sorry, but this is what I have come across and people said it worked so...</p></blockquote><p></p>
[QUOTE="Rob, post: 235500"] Just looked it up, this is excatly what you have to do: 1. Change the amount of RAM installed be removing or adding a chip. Don't remove ALL the memory, as you can't boot, of course. 2. reboot holding the Command-Option-P-R key combination. Hold the keys until you've heard at least two successive startup sounds. 3. The Open firmware password will now absolutely be disabled, and you can shut down and return your powerbook to its normal RAM setup. Boot to your OS X installer CD, and at the first screen, go the the Installer menu, and click on Change Startup Disk, and change to your normal boot drive. 4. That should do it, and you can exit from the installer, unless you need to do that, too. or 1) Install or remove a stick of ram. 2) Zap the Pram 3 times in a row. 3) your done. As I don't have a "real" Mac, I can not try this, sorry, but this is what I have come across and people said it worked so... [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Need Help With Clamshells....... Reward
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