Test your MacBook for random shutdowns

While not the same exact problem, my blackbook often does not responsively wake from sleep if I rapidly close then reopen the screen. The computer will seem to be 'off', but if I wait 10 - 20 secs, it re-awakens.

I do notice that it is more prone to this behavior if the computer has not been restarted for some time -- say a few weeks.

I don't mean to speak for other's experiences, but I wonder if their computers are not shutting down but are instead experiencing extended sleep? A problem all the same, but maybe a different problem...

Sent mine to apple for the second time, this time they replaced part # APP-333-0553 MOD, 512 MB, DDR2 667MHz, SAM C (whatever that is). Unforunately this did nothing and it still shuts down all the time.

Anyone know what exactly this part is?

pinskerj@yahoo.com

I have a white Macbook upgraded with 2 GB of non-apple RAM. The computer was fine for several months and then all of sudden it would randomly shut down. I brought it to the local apple store and they kept it to test and found nothing.

The problem continued to happen until I went away for a week. I got back installed the latest updates and have not had a single shutdown since (huge knock on wood). Nothing else has changed configuration wise.

I figured it was something apple knew about and somehow fixed in an update.

Unfortunately I feel Apple doesn't seem to really have a clue yet...its a pain. Its only going to get worse in about a month, when all the college kids with their new macbooks start shutting down on them.

Gee, no test needed here. My sweet-looking black MacBook has RSS (Random Shutdown Syndrome). I'm on my second logic board :( Guess that wasn't the right fix there Apple!!! Three shutdowns yesterday, and one today translates into one expensive paperweight. What? Bring it in you say? They are clueless about the solutions - that's why Apple is silent.

I'm hoping they'll come up with a firmware fix or something. A recall would be a pain. Remember back in 2003 when AirPorts just wouldn't work right? Eventually, they pushed out a fix and all was well. But, dang. What a pain, what a pain.

I have the same problem.. be surfin' the net and then it just shuts off. Very annoying. I installed 2 1gb sticks right after I bought it. It is usually pretty hot when this happens.?

I bought my MB (1.83ghz) upgraded RAM to 1gb about three weeks after they hit the stores. My RSD started about 3.5 weeks ago, some days are worse than others with 5+RSD and then there are many days between a RSD. Who Knows??!!
I'm holding on until it becomes impossible to work with in hopes that Apple can figure out what is causing the RSD. I don't want to send it in just to have it happen again..........

I'm glad (well, maybe glad isn't the right word...) that I'm not alone in this problem. Most often it's when I open up my macbook pro, but has happened once or twice while using it. I haven't run the test yet, but it will be intrestig to see what it comes up with.

From my personal experience, this problem seems to be that the CPU gets hot too quickly for the temperature sensors to switch on the fans and something shuts the whole computer down. If I am able to gradually ramp up the CPU so that the fans are already on when CPU load gets heavy, the shutdowns don't occur.

I've used my MacBook for a total of 5 hours in between sending it to Apple. Its now on its second trip back. They are unable to reproduce the issue.