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therealseebs

macrumors 65816
Original poster
Apr 14, 2010
1,057
312
My mom's got a 13" MBP, which appears to be late-2010. (We bought it in January of 2011.) The memory installed in it right now is 2x2GB of DDR3-1066 memory. Under the impression it was an early-2011, I got 2x4GB of DDR3-1333. Installed memory, machine started to boot and then hung. With command-option-V, I see that it's getting about to "DSMOS has arrived" and a message about AirPort link being down, then... Nothing. No diagnostics, no errors, no further behavior.

This happens with either of the new DIMMs in either slot, or with them in both slots. Restoring the original memory causes the machine to boot without trouble.

So far as I know, DDR3-1333 should work without trouble or special setup on a machine that does -1066. I don't have anything that takes this kind of memory that I can easily test it in. (The Air apparently uses DDR3-1333, but it's soldered-in, not DIMMs.) Since I don't have nearby electronics stores, it's a couple-hour driving task to swap memory, so I'd like to diagnose this further if possible before, say, going and returning stuff.

EDIT: I found out that my mid-2010 MBP takes the same kind of memory, nominally, and since I'm easily amused, I tried swapping the memory into it. Works fine there.

Followup: So, I decided to try the memory from my mid-2010 MBP in my mom's laptop, and it worked. Since the new memory works fine in mine, I'm just gonna write it off to "sometimes computers are picky about memory in different ways".
 
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