So, can I put 4GB of ram in my MacBook Pro or not?

[bbrosemer]

When have you last gone to http://www.apple.com? 1: All new PowerMac G5's are 64-bit. 2: They are maxed out at 16 GB, due to "only" 8 RAM slots. 3: The G5's motherboard supports up to 4 terabytes of RAM (4000 GB)

Wasn't he reffering to 32 bit G5's anyway this all wont matter in a few months when all of the Mac lineup goes 64 bit, well maybe other then the mini.

 

[dextertangocci]

64-bit logically supports 17,179,869,184 gigabyes of RAM. That's 16 exabytes.

Isn't it 32GB?

http://compreviews.about.com/cs/cpus/a/aapr64bit.htm?terms=64+bit+computing

 

[TBi]

the OS memory management also control how much RAM can be supported, e.g. if you insert 4GB of ram into XP PRO workstation, XP will register approx 3.5GB RAM only, need to check how much RAM are supported by OSX...

That's more or less a hardware limitation. There is a 4GB memory space but a lot of that memory space is taken up by the PCI/PCI-Express slots and any other hardware including the processor, northbridge and southbridge.

They can get around it with a special extension most new processors have.

 

[A is jump]

Wasn't he reffering to 32 bit G5's anyway this all wont matter in a few months when all of the Mac lineup goes 64 bit, well maybe other then the mini.

arent all G5s 64 bit?

 

[emotion]

Isn't it 32GB?

http://compreviews.about.com/cs/cpus/a/aapr64bit.htm?terms=64+bit+computing

Memory addressing 2^32 for 32 bit, and technically 2^64 for 64 bit but most manufacturers use 40 bit addressing for 64 bit implementations (like the article states....i've just read it).

 

[RainboltArt]

Different Opinion - nope

According to Apple PR and a DIMM manufacturer you cannot put the 2GB chip in to apple MacBook Pro

http://www.apcstart.com/site/dwarne/2006/07/706/2gb-notebook-ram-but-not-for-macbooks

http://www.crucial.com/store/partspecs.asp?imodule=CT25664AC667&prs=USPRICEGRABBER

Yes you can.

The thing with ram is that it doesnt need software updates or drivers, you just plug it in a hope that it works. There is no reason why 2 x 2gb SO-DIMMs wont work. A 32-bit processor will max out at 4gb of ram though, it wont be able to access any more then that.