Upgrading ram on my Macbook Pro

[dantonkin]

Hi there,

I've been doing a bit of Googling as to whether my Macbook Pro will support 4gb ram. However, I've had no luck finding any info.

It was bought about a year ago, if that helps, and is the 2ghz Intel core duo model.

Any help would be much appreciated.

 

[dantonkin]

Dantonkin, I swear my MBP manual tells me the max my Pro can support? In the upgrading memory bit... but as with Dr Jones, I could be wrong also

Excuse my ignorance, but if you try to install 4GB+ in Windows Vista/XP x86 it will not recognise the full 4GB, you only see 3.5GB or sumin similar.

But how comes OS X can recognise up to 16GB (prob more, but Im going by what the Mac Pro can support) when OS X is a 32bit operating system? I thought the limitation of 4GB+ RAM was a 32bit issue? Just curious to know how it works?

You are right, it does say in the manual! Turns out my Macbook Pro can only accept 2gb max using 2x pc2-5300 ddr2 667mhz ram.

That sucks, I wanted to get 3 gigs min in there, along with a new 7200rpm hdd and Leopard!

 

[dantonkin]

The chipset supports 4Gb, unsure if Apple use EFI or whatever to limit to 2Gb or if it's a "we've not tested it with more" limit. Stick 4Gb in and you'll not be able to use all of it as devices like the graphics RAM use the address space, hence why the pre-santa rosa Core2 machines are limited to 3Gb.

May just try a 2gb stick then.