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MacBookPro RAM: CL7 or CL9

Fresh3 days ago
Mar 15, 202610192 views
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Problem

I want to increase the RAM in my MacBookPro 15", 2.53 GHz, Mid-2009. I currently have 4GB, and I want 6GB (and upgrade to 8GB later - I think this should work with my model: http://forums.macrumors.com/showthread.php?t=573906) Now I see two offers: 1x4GB DDR3 1333 CL9 9-9 (149 EUR) 1x4GB DDR3 1066 …

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Fix for: MacBookPro RAM: CL7 or CL9

Low Risk

According to Apple your machine has the 1066 MHz CL7. http://support.apple.com/kb/SP544 HOWEVER Like the other answers say, higher RAM specs are often backwards compatible with slower mother boards ("logic board" in Apple's case). So you could go wi…

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