MacBook Shuts Down When Lid is Closed

Posted on October 30, 2007
Filed Under Troubleshooting |

For some reason my MacBook would shut down and completely reboot when I closed the lid to put it so sleep. I tried resetting the Power Management Unit (SMC), no luck. I also tried resetting the NVRAM by holding Option-Command-P-R during startup, that did not work either. I had an eerie suspicion that it may be due to my recent memory upgrade. I tried reverting to my original setup of 2 x 256MB and it solved the problem. I now put in 1 x 2GB and left out the extra 256MB and it solved my problem. Now I am worried that by purchasing another 1GB that I will run into the issues again.

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