Resolved MacBook Mid 2009 5,2 8gb RAM


hello all! have been reading forums people (are @ least claiming to) have put 8gb of ram in 5,2 macbooks. want same, said efi upgrade. has else done , can point me in right direction? don't want brick mac. have macos high sierra on (with patch of course) in case necessary information. reply!
 

more 4 gb should work if have recent os , required firmware upgrade.

https://support.apple.com/en-ca/ht201518

however, not clear if macbook5,2 white limited 6 gb (4+2) or if 8 gb work.

macbook5,1 aluminum works fine 8 gb though.
 


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