MacBook Pro 32GB M2 Max not using all physical memory, showing 8GB in Activity Monitor

I have a M2 Max 32GB 2023 macbook pro running ventura 13.5. It is displaying 8GB of physical memory inside activity monitor. The full allocation of RAM is not being shown or used. I may have set a limit on accident in terminal. Hoping to try and remove this limit on the available RAM.

MacBook Pro 14″, macOS 13.5

Posted on Jun 10, 2024 9:48 PM

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Question marked as Top-ranking reply

Posted on Jun 11, 2024 11:18 AM

ckim2311 wrote:

Hi thanks for the reply! This is what is showing under memory. I did go to the apple store yesterday and all the tests showed the RAM was working properly.

The tech created a new admin user and we saw that the 32GB was showing for the new user,

hence thinking this was an unexpected user created limit on the RAM.


re: https://apple.stackexchange.com/questions/473310/2023-mac-m2-chip-ram-not-using-all-physical-memory-available-32gb-to-8gb



Are you running any VM machine on your Mac...?


this would be Parallels or Fusion— if so I would make changes to dedicated memory in those >Settings...


If you are unsure about your third party app — search the developers website or contact their: Support/Help/FAQ/Known issues/compatibility/updates…




Apple Silicon ref: sudo nvram boot-args="ncl=131072" unabl… - Apple Community



No SMC or NVRAM on the M1/M2/M3 SoC.

The best you can do if you have an issue— equivalent Shut down, close the lid 30 secs+ , reboot as normal.

If no resolve try SafeBoot Use safe mode on your Mac - Apple Support to sort anomalies.





5 replies
Question marked as Top-ranking reply

Jun 11, 2024 11:18 AM in response to ckim2311

ckim2311 wrote:

Hi thanks for the reply! This is what is showing under memory. I did go to the apple store yesterday and all the tests showed the RAM was working properly.

The tech created a new admin user and we saw that the 32GB was showing for the new user,

hence thinking this was an unexpected user created limit on the RAM.


re: https://apple.stackexchange.com/questions/473310/2023-mac-m2-chip-ram-not-using-all-physical-memory-available-32gb-to-8gb



Are you running any VM machine on your Mac...?


this would be Parallels or Fusion— if so I would make changes to dedicated memory in those >Settings...


If you are unsure about your third party app — search the developers website or contact their: Support/Help/FAQ/Known issues/compatibility/updates…




Apple Silicon ref: sudo nvram boot-args="ncl=131072" unabl… - Apple Community



No SMC or NVRAM on the M1/M2/M3 SoC.

The best you can do if you have an issue— equivalent Shut down, close the lid 30 secs+ , reboot as normal.

If no resolve try SafeBoot Use safe mode on your Mac - Apple Support to sort anomalies.





Jun 11, 2024 10:56 AM in response to ckim2311

ckim2311 wrote:

I have a M2 Max 32GB 2023 macbook pro running ventura 13.5. It is displaying 8GB of physical memory inside activity monitor.
The full allocation of RAM is not being shown or used.

I may have set a limit on accident in terminal. Hoping to try and remove this limit on the available RAM.
https://discussions.apple.com/content/attachment/8a142a49-6d32-4d60-b47b-11517d81a5ed


>About this Mac verify your M2 Max 2023 macbook pro(?)


What I see—





Terminal..No you do not have any control over your RAM here.


This is SoC—The M2 uses 6,400 MT/s LPDDR5 SDRAM in a unified memory configuration shared by all the components of the processor.






What do you see in


>(Option key) System Information>Hardware>Memory (?)












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MacBook Pro 32GB M2 Max not using all physical memory, showing 8GB in Activity Monitor

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