Specifications
46 Chapter 3 Boost Your MacBook
Installing Additional Memory
Yourcomputerhastwomemoryslotsthatyouaccessbyremovingthebottomcase.
YourMacBookcomeswithaminimumof2gigabytes(GB)of1066MHzDoubleData
Rate(DDR3)SynchronousDynamicRandom-AccessMemory(SDRAM)installed.Both
memoryslotscanacceptanSDRAMmodulethatmeetsthefollowingspecications:
 DoubleDataRateSmallOutlineDualInlineMemoryModule(DDR3)format
 30mm(1.18inches)
 204-pin
 1GBor2GB
 PC3-8500DDR3SO-DIMM1066MHzTypeRAM
Youcanaddtwo2GBmemorymodulesforamaximumof4GBofmemory.For
bestperformance,llbothmemoryslotsandinstallanidenticalmemorymodule
ineachslot.
To install memory in your MacBook:
1 Followsteps1through3beginningonpage37.
Important: Whenyouremovethebottomcase,youexposesensitiveinternal
components.Avoidtouchinganythingotherthanthememoryassemblywhenyou
removeoraddmemory.