Macbook 2.16GHz, max ram of 2GB or 4GB?

[bsheridan]

I was sure the 2.16GHz model of the macbook, (mid 07 release) was capable of a RAM upgrade to 4GB, but after doing the 'scan my mac' on the crucial website, it says its only capable of upgrade to 2GB.?

Can anyone confirm this please???

Does anyone with this macbook model have 4GBs installed?How is it working so far?

 

[iMpathetic]

I think it's something to do with the hardware limitations in the GMA950. Not sure though, I've never owned one. Just my $0.02.

 

[siurpeeman]

the 2.16 ghz macbooks can recognize a total of 3.3 gb of ram. read the macrumors guide to intel ram here.

 

[bsheridan]

Thanks for that link siurpeeman, cleared that right up for me!
gold star.

 

[mcavjame]

the 2.16 ghz macbooks can recognize a total of 3.3 gb of ram. read the macrumors guide to intel ram here.

Does the RAM show up as 3.3? I have a Macbook purchased in June of 2007 and I just put in 4 GB hoping to get the 3 GB recognition. About this Mac shows 4 GB. See attached file.

 

[Genghis Khan]

I've done that as well

it shows 4GB, but can only use 3.3GB theoretically

although, photoshop cs3 will only use up to 3GB on mine

 

[CanadianDonkey]

Question pertaining to this topic:

I may be getting a 2.1 Ghz macbook, does that model allow 4 gb's of ram? I checked the crucial website (and apples, too) and it doesn't seem to say anywhere that that doesn't work....

 

[nick9191]

Yes the 2.1 is the new Penryn and it definately supports 4gb RAM.

 

[72930]

EDIT: Please delete, commented on wrong thing

 

[diamond3]

I've done that as well

it shows 4GB, but can only use 3.3GB theoretically

although, photoshop cs3 will only use up to 3GB on mine

If I'm not mistaken, isn't that the max that photoshop will access? I've got a 8x2.8 MP w/6gig of memory and it still shows that 100% memory is only 3gig

 

[3247]

If I'm not mistaken, isn't that the max that photoshop will access? I've got a 8x2.8 MP w/6gig of memory and it still shows that 100% memory is only 3gig

A 32bit application only has an address space of 4 GiB, which includes parts of the operating system, memory mapped files, etc.
Photoshop is probably not ported to 64bit yet, given that even CS3 runs on PowerPC and OS X 10.4.8 (which, unlike Leopard, is 32bit).