Upgrading Memory to 6Gb RAM
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?
Update
FYI:
The MBP (A1229) has now been performing flawlessly with the upgrade to 6Gb RAM for 9 months. There has not been one single issue that could be attributed to the upgrade (or any other issues for that matter, this machine has been remarkably stable since I bought it in october 2007). I have not run any tests (like Geekbench), as I have no data from the machine before the upgrade. Judging from my daily use however, I would estimate an increase in performance of approximately 60 to 75%. I am now considering an upgrade to a 250GB SSD and will hopefully be able to post results from this upgrade in the near future.
3 件のコメント
Haven't tried with 2x4GB, but it is apparently it's not possible for the A1229 to address more than 6GB:
http://www.powerbookmedic.com/xcart1/?ca...
It would be interesting to test though, I will try to locate a proper technical reference to make the case clear.
Claus Hopstock さんによる
If I remember correctly the Penryn North Bridge chip had a problem way back then and was limited to 6GB. Intel did issue a fixed version but I don't think Apple ever altered the firmware as the risk of someone with the older chip could have problems. Which is why you need a mixed set.
Unlike the video RAM allocation issue in the older MacBook models, there you could only address 3 GB of 4 GB installed but in that case using a matched set gave you interleaved memory if you could installed a pair of 2 GB modules and yet still could access the limit of 3 GB.
Dan さんによる
hi, i have tried installing 2x4gb ram in my macbook pro 17 2007 model..but it didn't work...so max upgrade is 6gb only
Satya Srinivas Mudapaka さんによる