I have a Late 2008 Macbook Pro 2.8 Ghz with 4GB of ram, and I'm trying to figure out what the max amount of ram I can install in this machine.
Some places say 6GB, Apple sells 8GB kits for it. I'm confused.
Take the confusion out of the issue. What does Crucial or Kingston say about the memory capacity of the computer?
The manufacturers manual is a snapshot in time, it only reflects what the manufacturer tested, when the manual was being written. They are rarely updated, unless a new version of the computer / motherboard / etc comes out.
Kingston & Crucial are willing to test with newer memory chipsets, etc. So if they say your model will accept more, then it should work.
Manufacturer Specifications - Apple MacBook Pro 2.8GHz Intel Core 2 Duo (15-inch DDR3) Mid-2009
Number of Slots:
*Not to exceed manufacturer supported memory.
Drive Form Factor: 2.5" Drive Interface: SATA Maximum Memory: 8192MB Slots: 2 (2 banks of 1) Standard Memory: 4096MB removable USB Support: 2.x Compliant
Although the memory can be installed one module at a time, the best performance comes from using matched pairs of modules.
It supports up to 8gb ram. It for sure supports 8gb of RAM if apple sells kits for it.