Confirm Max Memory by Model Identifier:
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MacBook1,1 (All) - Install/use up to 2.0GB total memory
MacBook2,1 (All) - Install up to 4.0GB total memory, uses up to 3.0GB.
Note: Although limited to physically utilizing a maximum of 3GB, there is a performance
benefit due to 128 Bit addressing when 4GB( 2GB x 2 Matched set) is installed.
MacBook3,1 (All) - Install/use up to 6.0GB total memory
MacBook4,1 (All) - Install/use up to 6.0GB total memory
MacBook5,2 **2.0GHz Model Only** Install/uses up to 6.0GB total memory
MacBook5,2 **2.13GHz Model Only** Requires Different Memory Type, Please Click Here
MacBook5,1 (All) Requires Different Memory Type, Please Click Here
MacBook6,1 & MacBook6,2 (All) Requires Different Memory Type, Please Click Here