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View Full Version : MacBook PC2-5300 RAM in iMac?



danielsamuels
Oct 28, 2008, 07:02 AM
Hey all,

I currently have 4GB of PC2-5300 RAM in my 2.4Ghz white MacBook.
Will this work in my new 24" 2.8Ghz iMac?

According to Crucial the MacBook is DDR2 PC2-5300 and the iMac is DDR2 PC2-6400.

Crucial - iMac (http://crucial.com/uk/store/listparts.aspx?model=iMac%202.8GHz%20Intel%20Core%202%20Duo%20%2824-inch%29%20MB325LL/A)
Crucial - MacBook (http://crucial.com/uk/store/listparts.aspx?model=MacBook%202.4GHz%20Intel%20Core%202%20Duo%20%2813-inch%20White%29)

Thanks!


Dale Cooper
Oct 28, 2008, 07:09 AM
According to http://guides.macrumors.com/Understanding_Intel_Mac_RAM#Intel_iMacs.2C_MacBooks.2C_MacBook_Pros_and_Mac_minis

"The April 2008 iMac requires DDR2-800 MHz (PC2-6400) SODIMMs. It uses a 1066 MHz Frontside bus, and 800 MHz memory bus. There are reports that it will run with some 667 MHz SODIMMs, but performance will be compromised."
danielsamuels
Oct 28, 2008, 07:15 AM
According to http://guides.macrumors.com/Understanding_Intel_Mac_RAM#Intel_iMacs.2C_MacBooks.2C_MacBook_Pros_and_Mac_minis

"The April 2008 iMac requires DDR2-800 MHz (PC2-6400) SODIMMs. It uses a 1066 MHz Frontside bus, and 800 MHz memory bus. There are reports that it will run with some 667 MHz SODIMMs, but performance will be compromised."

Okay, thanks. So basically - it will work, but will be slower than it could be?