Apple Macbook Mid2007 User Guide

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3 Boost Your Memory
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32Chapter 3   Boost Your Memory
This chapter provides information and instructions for installing additional memory 
and for removing and replacing the battery in your MacBook. 
Your computer has two memory slots that you access by removing the computer’s 
battery. Your MacBook comes with a minimum of 1 gigabyte (GB) of 667 MHz Double 
Data Rate (DDR2) Synchronous Dynamic Random-Access Memory (SDRAM) installed. 
Both memory slots can accept an SDRAM module that meets the following 
specifications:
ÂDouble Data Rate Small Outline Dual Inline Memory Module (DDR2 SO-DIMM) format
Â1.25 inch or smaller
Â512 MB or 1 GB
Â200-pin
ÂPC2-5300 DDR2 667 MHz Type RAM
For best performance, fill both memory slots and install an identical memory module in 
each slot. 
WARNING:  Apple recommends that you have an Apple-certified technician install 
memory. Consult the service and support information that came with your computer 
for information about how to contact Apple for service. If you attempt to install 
memory and damage your equipment, such damage is not covered by the limited 
warranty on your computer.  
						

							 
Chapter 3   Boost Your Memory33
Installing Additional Memory
Installing memory involves removing and replacing the battery. The following 
procedure includes instructions for removing the battery, adding memory, and 
replacing the battery.
Step 1:  Removing the Battery 
1Shut down your MacBook. Disconnect the power adapter, Ethernet cable, and any 
other cords connected to the MacBook to prevent damaging the computer.
WARNING:  Use care when handling the battery. See the battery safety information 
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34Chapter 3   Boost Your Memory
2Turn over the MacBook and locate the battery latch. Use a coin to turn the latch a 
quarter turn clockwise to unlock the battery, and gently remove it.
WARNING:  The internal components of your MacBook can be hot. If you have been 
using your MacBook, wait 10 minutes after shutting down to let the internal 
components cool before continuing.
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Chapter 3   Boost Your Memory35
Step 2:  Installing Memory
1Loosen the three captive screws that secure the L-bracket, pull out the long end first to 
remove the bracket, and place it to the side. 
Levers on the memory slots spring out when you remove the bracket.
2Touch a metal surface inside the computer to discharge any static electricity from 
your body.
Loosen the 3 screws
Pull this side out
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36Chapter 3   Boost Your Memory
3To remove a memory module installed in a slot, move the lever all the way to the left in 
one swift motion until the edge of the memory module pops out. Pull out the memory 
module. Repeat to remove the other memory module.
Levers
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Chapter 3   Boost Your Memory37
4Insert the new memory modules in the slots:
aInsert the gold edge first, with the notch on the left side.
bUse two fingers with firm, even pressure to push in the memory modules. You 
should hear a click when the memory is inserted correctly.
Note:  The new memory module may have some residue on it from a lubricant 
that makes the memory easier to install. The residue is normal and should not be 
wiped off.
cIf the levers don’t return to the closed position, move them to the right to 
close them.
Notches
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38Chapter 3   Boost Your Memory
5Replace the L-bracket by inserting the short end first and tightening the screws.
Tighten the 3 screwsInsert thisend first
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Chapter 3   Boost Your Memory39
Step 3:  Replacing the Battery
1Place the right side of the battery into the battery compartment. Gently press the left 
side of the battery down. Use a coin to turn the latch a quarter turn counterclockwise 
to lock the battery into place.
2Reconnect the power adapter and any other cables that were attached.
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40Chapter 3   Boost Your Memory
Making Sure Your MacBook Recognizes the New Memory
After installing additional memory in your MacBook, check whether the computer 
recognizes the new memory. 
To check the computer’s memory:
1Start up your MacBook.
2When you see the Mac OS X desktop, choose Apple (!) > About This Mac.
For a detailed breakdown of the memory installed in your computer, open System 
Profiler by clicking More Info and then Memory. 
If your MacBook doesn’t recognize the memory or doesn’t start up correctly, confirm 
that the memory you installed is compatible with your MacBook and that it is installed 
correctly.