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Claus Hopstock
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Upgrading Memory to 6Gb RAM

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I am currently considering to install a memory upgrade in my 17 inch 2.4 Ghz Core 2 Duo "Merom" MacBook Pro. I have read the tutorial on this site where it states that I can choose 1 2GB block and 1 4Gb block and everything should be fine. However Mactracker on my MacBook Pro reports that 6Gb can be installed, but only 4GB will be used by the Mac. Precisely it states:

Maximum Memory 6.0 GB (Actual) 4.0 GB (Apple)

So my question is: Can I actually upgrade to 6Gb of usable RAM in this machine?

Edited by: Walter Galan ( ) , Claus Hopstock ( )

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mayer
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Supports 667 MHz PC2-5300 DDR2 SDRAM.

Standard RAM: 2 GB Maximum RAM: 6 GB*

Details: 2 GB installed as two 1 GB modules. No slots free.

*Apple officially supports a maximum of 4 GB of RAM but third-parties have been able to upgrade the system to 6 GB of RAM using one 2 GB and one 4 GB memory module.

Thanks a bunch for the prompt answer, my main concern is that upgrading to 6Gb using unmatched RAM (not 2x3GB) will affect the systems stability. I would be very pleased if anyone has a comment about this.

Claus Hopstock,

You lose interleaving by having unmatched pairs but the off set of more RAM makes that of little consequence. I haven't seen any reports of system instability with unmatched pairs.

mayer,

Thanks a lot, will order 4GB block ASAP

Claus Hopstock,

did it work?

myke floden,

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