12 Replies Latest reply: May 27, 2013 5:19 PM by reibel57
Jc61990 Level 1 (0 points)
Hello, i have a 15" 2.5GHz MacBook Pro Penryn Early 2008.

It has snow leopard 10.6.6 64-bit installed on it. Currently i am running it with 3GB DDR2 667mhz ram.

I am curious, can i upgrade it to 8GB of DDR2 800MHz ram? Will it be accessible/useable? Wikipedia says i can only upgrade to 6GB, but i think thats due to 10.5, 10.6 being x64 i would assume it should be able to address 8GB of memory. Thanks!

Macbook Pro 4,1 and MacBook 5,2, Mac OS X (10.6.6), MBP 2.5GHz; MB 2.13GHz