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Apple Computing Products:
macOS - Desktop Hardware
Best Online Mac Repair service
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<blockquote data-quote="rexk" data-source="post: 1568953" data-attributes="member: 243284"><p>You seem to be right. After using the Activity Monitor while opening various apps I use, it is clear that all of the 4gb RAM is being used, before I reach my full normal activity.</p><p></p><p>Some time ago. I learned that only 8gb of the 16 gb RAM installed was functional. Trial and error moving of the memory cards proved that all of the RAM cards were functional, but that the logic board was able to engage only half (4) of the 2gb cards. This was confirmed by an Authorized Mac Repair dealer. Because a new logic board cost about 80% of the value of the computer, I have been living with the 8gb, and it has been enough. Today I discovered that now only 4gb is functional, and the Activity Monitor makes clear that that is not enough. I have located warrantied, used logic boards for</p><p>about $200. and am considering replacement. First I will reconfirm that all 8 of the 2gb memory cards are still functional. Any thoughts?</p></blockquote><p></p>
[QUOTE="rexk, post: 1568953, member: 243284"] You seem to be right. After using the Activity Monitor while opening various apps I use, it is clear that all of the 4gb RAM is being used, before I reach my full normal activity. Some time ago. I learned that only 8gb of the 16 gb RAM installed was functional. Trial and error moving of the memory cards proved that all of the RAM cards were functional, but that the logic board was able to engage only half (4) of the 2gb cards. This was confirmed by an Authorized Mac Repair dealer. Because a new logic board cost about 80% of the value of the computer, I have been living with the 8gb, and it has been enough. Today I discovered that now only 4gb is functional, and the Activity Monitor makes clear that that is not enough. I have located warrantied, used logic boards for about $200. and am considering replacement. First I will reconfirm that all 8 of the 2gb memory cards are still functional. Any thoughts? [/QUOTE]
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