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Why does the MacBook Pro show only 3GB of memory when 4GB is installed?

Why does the MacBook Pro show only 3GB of memory when 4GB is installed?

I've been using my MaBook Pro happily for months but only recently realized that 1 GB is missing. Is there something wrong with my MacBook? It seem to runs fine.

Asked by: Guest | Views: 413
Total answers/comments: 2
Guest [Entry]

"Usually this is because you're using a 32-bit operating system rather than a 64-bit one.

UPDATE: Apparently, this is a chipset limitation in the earlier Macbook Pros"
Vhlpld [Entry]

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