From EveryMac: Standard RAM: 4 GB Maximum RAM:16 GB*
4 GB of RAM pre-installed as two 2 GB modules, no slots free.*Originally, both the official and actual maximum RAM was 8 GB. However, as [https://blog.macsales.com/16302-some-2010-mac-owners-can-get-more-ram-than-they-thought|++confirmed++] by site sponsor OWC, ''if'' running OS X 10.7.5 or higher, updated with the latest EFI, and equipped with proper specification memory modules, this model can support up to 16 GB of RAM.
PC3-8500 DDR3 - 1066 MHz
So as we can see your system is able to run with 16 GB!
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Lets see if upgrading your OS to a higher lease fixes this. Starting in Mavericks and going forward Apple now updates the firmware only via the OS update process.
+
Lets see if upgrading your OS to a higher release fixes this. Starting in Mavericks and going forward Apple now updates the firmware only via the OS update process.
From EveryMac: Standard RAM: 4 GB Maximum RAM:16 GB*
4 GB of RAM pre-installed as two 2 GB modules, no slots free.*Originally, both the official and actual maximum RAM was 8 GB. However, as [https://blog.macsales.com/16302-some-2010-mac-owners-can-get-more-ram-than-they-thought|++confirmed++] by site sponsor OWC, ''if'' running OS X 10.7.5 or higher, updated with the latest EFI, and equipped with proper specification memory modules, this model can support up to 16 GB of RAM.
PC3-8500 DDR3 - 1066 MHz
So as we can see your system is able to run with 16 GB!
Lets see if upgrading your OS to a higher lease fixes this. Starting in Mavericks and going forward Apple now updates the firmware only via the OS update process.
From EveryMac:
Standard RAM: 4 GB Maximum RAM:16 GB*
4 GB of RAM pre-installed as two 2 GB modules, no slots free.*Originally, both the official and actual maximum RAM was 8 GB. However, as [https://blog.macsales.com/16302-some-2010-mac-owners-can-get-more-ram-than-they-thought|++confirmed++] by site sponsor OWC, ''if'' running OS X 10.7.5 or higher, updated with the latest EFI, and equipped with proper specification memory modules, this model can support up to 16 GB of RAM.
PC3-8500 DDR3 - 1066 MHz
So as we can see your system is able to run with 16 GB!
Lets see if upgrading your OS to a higher lease fixes this. Starting in Mavericks and going forward Apple now updates the firmware only via the OS update process.