3 Replies Latest reply: Aug 30, 2012 10:33 PM by roam
macdadee1 Level 1 Level 1

I upgraded memory in my macbook (late 2006) to 2gb with intent to download Lion.  Followed instructions in the manual, hit the power button and no reboot, rather the machine appears to be in sleep mode (pulsating light, dark screen) but will not wake up.  I reinstalled the original memory with the same result.  Please help me solve my problem, thanks in advance.



MacBook, Mac OS X (10.6.8), late 2006
Solved by roam on Aug 30, 2012 10:33 PM Solved

The memory modules are a very tight fit. Go back to them and push quite firmly to seat them in fully.

Reply by den.thed on Aug 30, 2012 9:48 PM Helpful

Sounds like either you have the wrong memory modules or they are not properly seated in the slots.


Exactly which Macbook do you have and what RAM modules did you buy?


see > How to identify MacBook models


and then > MacBook: How to remove or install memory


For quality RAM upgrades,


see > OWC Memory for MacBook and MacBook Pro


or > Crucial Memory Upgrades for Macs - Apple Memory


Lastly, this is the Intel iMac section of the Apple Support Communities and the section for Macbooks and Macbook Pros is over at > Notebooks: Apple Support Communities

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