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Memory upgade require Re-patched DSDT?

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    InsanelyMac Geek

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Hey guys. I'm about to do a RAM upgrade, and thought about my DSDT... Do I need to re-patch my DSDT for the new memory? Thanks!

Gringo Vermelho

Gringo Vermelho

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With all your memory installed, extract your DSDT again. This should be done in Linux or Windows, if you extract it on OS X you will just end up with your already patched DSDT.

Compare the two (use diffmerge or similar tool, some DSDT editors have a compare function) do a search for "SystemMemory" and compare the numbers. Replace the address ranges in the old DSDT with the address ranges from the new one.

I have to say that I'm not sure that's the only thing that changes - so if you want to be absolutely sure it's probably better to apply all your patches to the new DSDT.



    Insanely digesting DSDT

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i notice on dell laptops it has a dynamic table where it pics its different table per ram amount detected. ( dells should be safe)

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