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Current version by: Xinan ,

Title:

1333Mhz RAMs working on late 2009 unibody MacBook?

Text:

It seems that some people have got 1333Mhz RAMs working on this MacBook.

E.g.

http://forums.macrumors.com/showthread.php?t=989527

and

http://apple.stackexchange.com/questions/95061/is-there-a-firmware-upgrade-for-the-macbook6-1-from-mb61-00c8-b00-to-b02

and several more I couldn't find it now.

But many people failed at doing this. And I found a interesting phenomenon. There is two different model of this MacBook. One with Bootrom version MB61.00C8.B02, which is majority, the other with MB61.00C8.B00 which is minority. And it seems that only those with Bootrom version MB61.00C8.B00 can use 1333Mhz RAMs.

Can anyone verify this? I have a MB61.00C8.B00 one and recently I'm considering to upgrade its RAMs. I go for as fast as I can, so if 1333Mhz RAMs can be used, and without any side effects. I'll go for it.

Thank you guys!

Device:

MacBook Unibody Model A1342

Status:

open

Accepted Answer:

150457

Original post by: Xinan ,

Title:

1333Mhz RAMs working on late 2009 unibody MacBook?

Text:

It seems that some people have got 1333Mhz RAMs working on this MacBook.

E.g.

http://forums.macrumors.com/showthread.php?t=989527

and

http://apple.stackexchange.com/questions/95061/is-there-a-firmware-upgrade-for-the-macbook6-1-from-mb61-00c8-b00-to-b02

and several more I couldn't find it now.

But many people failed at doing this. And I found a interesting phenomenon. There is two different model of this MacBook. One with Bootrom version MB61.00C8.B02, which is majority, the other with MB61.00C8.B00 which is minority. And it seems that only those with Bootrom version MB61.00C8.B00 can use 1333Mhz RAMs.

Can anyone verify this? I have a MB61.00C8.B00 one and recently I'm considering to upgrade its RAMs. I go for as fast as I can, so if 1333Mhz RAMs can be used, and without any side effects. I'll go for it.

Thank you guys!

Device:

MacBook Unibody Model A1342

Status:

open