No wake up after RAM upgrade.

Hello there.

I recently upgraded the RAM in my macbook 6.1 (late 2009) from the 2x 1GB DDR 3 1066Mhz ones to a pair of 2GB at the same speed.

I did had a problem with a service battery message but it went away after I did a SMC reset.

Everything is working as perfect as before (but faster thanks to the upgrade) so far, but not the sleep.

It seems that if I close the lid and the system enter sleep it doesn't wake up, no matter what I press, or do.
After a hard restart the system was starting like it had a forced sleep because of low battery.

So I though that maybe this is some sort of incompatibility with the newer RAM and as of that I changed the sleep mode through the terminal to actually do a hibernate (and unlike the default sleep, which saves both data in RAM and HDD, to save only in HDD, which it takes longer, but I didn't care to wait a little more).

This didn't worked, I also tried the other sleep mode (the one that use only RAM to store data during sleep) but no progress.
So I turned it back at the default sleep mode, well now if I sleep the system and hard restart it, the recovery progress is freezing.

No big deal, but to me it seems like a software problem and I will keep a backup from the files and do a fresh system reinstall.


I hope this will fix it, but before that I wanted to ask here if anyone have any idea that will save me from the format.

🙂


(Macbook white unibody, model 6.1 late 2009, OSX SL 10.6.8 no other modifications than the RAM)

This sounds pretty sad because both modules are brand new, anyway I will try that and report back.


(Still... everything else works fine, and I do some heavy graphics work on the system. 😡)

So I run the memtest last night, but everything reported OK.

It doesn't seem hardware related problem, I mean come on we are at 2011 and the RAM is Corsair, it can't be possible an incompatibility flaw. I hope there is just some software corruption somewhere which will go away with the format.

Thanks for the help 🙂

Juts a last minute bump up, in case there is a solution we missed 😀

sorry for necromancing the thread, but I have some things to add.

First of all I didn't moved on with the format last time I posted here, I upgraded to Lion where the problem persisted and I was very busy afterwards to format.

Last night I did a format and reinstalled Lion, with the Lion partition.

Well... this didn't fixed it either.

I'm sad, I used to be proud of the fast wake up of my macbook and now I can't even close the lid...

Any idea if I can disable the sleep mode while I close the lid?

Or maybe any idea about the problem itself?

As I said the RAM doesn't show any errors in testing so returning it as faulty, is not an option since it seems to work just fine.

Thanks in advance.