ram upgrade mhz issue

[umdere]

my mid 2009 13' 2.26ghz mbp has 2x2 ddr3 1066mhz ram. i will install 4x2. i wanna upgrade it and do i have to 1066 mhz ram memory ? can i use 1333mhz ?

 

[Naimfan]

my mid 2009 13' 2.26ghz mbp has 2x2 ddr3 1066mhz ram. i will install 4x2. i wanna upgrade it and do i have to 1066 mhz ram memory ? can i use 1333mhz ?

You can, but why bother? Just use 1066 MHz, as it is what Apple ships it with and supports.

 

[umdere]

thanks for reply. why i asked is just curiousty

 

[Naimfan]

thanks for reply. why i asked is just curiousty

Ah! You're welcome.

1333 MHz will work, although there have been sporadic reports of problems with it in your machine. In some places, there is enough of a price difference to make trying it worthwhile; but for the tiny price spread these days I'd just suggest going with 1066.

 

[shardey]

I would go with the 1333, if you have problems with the ram more than likely it was a bad stick to begin with. I run 1866 in my laptop and I had so many negative responses saying it's not going to work blah blah blah. Well it does and I don't have any problems.

If anything, the memory will downclock to 1066. Buying 1333 will allow you to use it in a newer machine as well.

 

[killerrobot]

This user (https://forums.macrumors.com/threads/1226321/) was having problems with 1333 MHz in his 2010 MBP even though the RAM he bought was backwards compatible. It seems to be a total crapshoot, so I second buying the 1066 MHz.