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36 Chapter 3 Boost Your Memory
YouriMaccomeswithatleast4gigabytes(GB)ofDoubleDataRate3(DDR3)Dynamic
RandomAccessmemory(DRAM)installedastwo2GBmemorymodules.Youcan
replaceorinstalladditional2GBor4GBmemorymodulesforuptoamaximumof
16GB.Memorymodulesmustmeetthefollowingspecications:
 SmallOutlineDualInlineMemoryModule(SO-DIMM)format
 1333MHz,PC3-10600,DDR3compliant(alsoreferredtoasDDR31333)
 Unbueredandunregistered
WARNING: ApplerecommendsthatyouhaveanApple-certiedtechnicianinstall
memory.ConsulttheserviceandsupportinformationthatcamewithyouriMacfor
informationabouthowtocontactAppleforservice.Ifyouattempttoinstallmemory
anddamageyourequipment,thatdamageisn’tcoveredbythelimitedwarrantyon
youriMac.