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Apple Memory DIMMs warranty Memory Configuration, Specifications, Quad-Core Configuration

Models: Memory DIMMs

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Memory Configuration

Quad-Core Configuration

DIMMs reside on the computer’s processor board, which is laid out in two configurations. Check the illustrations on this page to determine if you have a quad-core or 8-core configuration.

Specifications

DIMMs for your computer must fit these specifications:

• PC3-8500,1066 MHz, DDR3 SDRAM UDIMMs

• 72-bit wide, 240-pin modules

• 18 memory ICs maximum per UDIMM

•	Error-correcting code	8-Core Configuration
•	Error-correcting code
	(ECC)

Note: Memory from older Apple computers is not compatible with your computer.

073-1246 Rev. B 2

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Apple Memory DIMMs warranty Memory Configuration, Specifications, Quad-Core Configuration

Contents

Replacement Instructions First StepsOpening the Computer Memory DIMMsQuad-Core Configuration Memory ConfigurationSpecifications If you have Filling SlotsQuad-Core Memory Fill these slotsFill in these slots 8-Core MemoryMemory Slot Utility If you have073-1246 Rev. B Removing the Installed DIMM1 Locate processor tray 073-1246 Rev. B 4 Place tray DIMM side up on soft, clean cloth3 Holding tray by latches, lift it out of computer 2 Push both ends of DIMM down until ejectors snap back up into place Installing the Replacement DIMM1 Align DIMM in slot on processor board Closing the Computer 1 Replace access panelMemory Diagnostic LEDs Important The quadResult How to Troubleshoot Memory LEDsCheck Action